47304240 has 40 divisors (see below), whose sum is σ = 146643888. Its totient is φ = 12614400.

The previous prime is 47304227. The next prime is 47304263. The reversal of 47304240 is 4240374.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×47304240² = 4475382243955200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47304240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98311 + ... + 98790.

Almost surely, 2^47304240 is an apocalyptic number.

47304240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47304240 is an abundant number, since it is smaller than the sum of its proper divisors (99339648).

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

47304240 is a wasteful number, since it uses less digits than its factorization.

47304240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197117 (or 197111 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 47304240 is about 6877.8077902774. The cubic root of 47304240 is about 361.6596212417.

The spelling of 47304240 in words is "forty-seven million, three hundred four thousand, two hundred forty".