75470840 has 32 divisors (see below), whose sum is σ = 170058960. Its totient is φ = 30144000.

The previous prime is 75470749. The next prime is 75470851. The reversal of 75470840 is 4807457.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 75470840.

It is a congruent number.

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, 47255 + ... + 48825.

Almost surely, 2^75470840 is an apocalyptic number.

It is an amenable number.

75470840 is an abundant number, since it is smaller than the sum of its proper divisors (94588120).

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

75470840 is a wasteful number, since it uses less digits than its factorization.

75470840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 75470840 is about 8687.3954669970. The cubic root of 75470840 is about 422.5969853097.

The spelling of 75470840 in words is "seventy-five million, four hundred seventy thousand, eight hundred forty".