70452840 has 32 divisors (see below), whose sum is σ = 211358880. Its totient is φ = 18787392.

The previous prime is 70452839. The next prime is 70452871. The reversal of 70452840 is 4825407.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 70452798 and 70452807.

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, 293434 + ... + 293673.

It is an arithmetic number, because the mean of its divisors is an integer number (6604965).

Almost surely, 2^70452840 is an apocalyptic number.

It is an amenable number.

70452840 is an abundant number, since it is smaller than the sum of its proper divisors (140906040).

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

70452840 is a wasteful number, since it uses less digits than its factorization.

70452840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587121 (or 587117 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 70452840 is about 8393.6190049346. The cubic root of 70452840 is about 413.0153265618.

The spelling of 70452840 in words is "seventy million, four hundred fifty-two thousand, eight hundred forty".