70291432 has 8 divisors (see below), whose sum is σ = 131796450. Its totient is φ = 35145712.

The previous prime is 70291421. The next prime is 70291433. The reversal of 70291432 is 23419207.

It can be written as a sum of positive squares in only one way, i.e., 65512836 + 4778596 = 8094^2 + 2186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×70291432² = 9881770825221248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70291432.

It is not an unprimeable number, because it can be changed into a prime (70291433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4393207 + ... + 4393222.

Almost surely, 2^70291432 is an apocalyptic number.

It is an amenable number.

70291432 is a deficient number, since it is larger than the sum of its proper divisors (61505018).

70291432 is a wasteful number, since it uses less digits than its factorization.

70291432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786435 (or 8786431 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70291432 is about 8383.9985687022. The cubic root of 70291432 is about 412.6996782882.

The spelling of 70291432 in words is "seventy million, two hundred ninety-one thousand, four hundred thirty-two".