247676040 has 96 divisors (see below), whose sum is σ = 808381080. Its totient is φ = 65765376.

The previous prime is 247675991. The next prime is 247676057. The reversal of 247676040 is 40676742.

247676040 is a `hidden beast` number, since 2 + 47 + 6 + 7 + 604 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 199317924 + 48358116 = 14118^2 + 6954^2 .

It is a super-2 number, since 2×247676040² = 122686841580163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 247675986 and 247676004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91182 + ... + 93858.

Almost surely, 2^247676040 is an apocalyptic number.

247676040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247676040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404190540).

247676040 is an abundant number, since it is smaller than the sum of its proper divisors (560705040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247676040 is a wasteful number, since it uses less digits than its factorization.

247676040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 247676040 is about 15737.7266465014. The cubic root of 247676040 is about 628.0024409279.

The spelling of 247676040 in words is "two hundred forty-seven million, six hundred seventy-six thousand, forty".