70612540 has 24 divisors (see below), whose sum is σ = 149374512. Its totient is φ = 28037760.

The previous prime is 70612519. The next prime is 70612541. The reversal of 70612540 is 4521607.

It is a super-2 number, since 2×70612540² = 9972261610503200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70612541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10146 + ... + 15625.

It is an arithmetic number, because the mean of its divisors is an integer number (6223938).

Almost surely, 2^70612540 is an apocalyptic number.

It is an amenable number.

70612540 is an abundant number, since it is smaller than the sum of its proper divisors (78761972).

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

70612540 is a wasteful number, since it uses less digits than its factorization.

70612540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25917 (or 25915 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 70612540 is about 8403.1267989957. The cubic root of 70612540 is about 413.3271605622.

The spelling of 70612540 in words is "seventy million, six hundred twelve thousand, five hundred forty".