247050540 has 288 divisors, whose sum is σ = 893760000. Its totient is φ = 56453760.

The previous prime is 247050539. The next prime is 247050553. The reversal of 247050540 is 45050742.

247050540 is a `hidden beast` number, since 2 + 4 + 70 + 50 + 540 = 666.

It is a super-2 number, since 2×247050540² = 122067938628583200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1241361 + ... + 1241559.

Almost surely, 2^247050540 is an apocalyptic number.

247050540 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 247050540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446880000).

247050540 is an abundant number, since it is smaller than the sum of its proper divisors (646709460).

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

247050540 is a wasteful number, since it uses less digits than its factorization.

247050540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 247050540 is about 15717.8414548563. The cubic root of 247050540 is about 627.4733268028.

The spelling of 247050540 in words is "two hundred forty-seven million, fifty thousand, five hundred forty".