70431572 has 12 divisors (see below), whose sum is σ = 126586740. Its totient is φ = 34263936.

The previous prime is 70431553. The next prime is 70431583. The reversal of 70431572 is 27513407.

It can be written as a sum of positive squares in 2 ways, for example, as 47831056 + 22600516 = 6916^2 + 4754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237797 + ... + 238092.

It is an arithmetic number, because the mean of its divisors is an integer number (10548895).

Almost surely, 2^70431572 is an apocalyptic number.

It is an amenable number.

70431572 is a deficient number, since it is larger than the sum of its proper divisors (56155168).

70431572 is a wasteful number, since it uses less digits than its factorization.

70431572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475930 (or 475928 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 70431572 is about 8392.3519945245. The cubic root of 70431572 is about 412.9737626163.

Adding to 70431572 its reverse (27513407), we get a palindrome (97944979).

The spelling of 70431572 in words is "seventy million, four hundred thirty-one thousand, five hundred seventy-two".