70431382 has 32 divisors (see below), whose sum is σ = 128397312. Its totient is φ = 28320864.

The previous prime is 70431379. The next prime is 70431407. The reversal of 70431382 is 28313407.

It is a self number, because there is not a number n which added to its sum of digits gives 70431382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15003 + ... + 19129.

It is an arithmetic number, because the mean of its divisors is an integer number (4012416).

Almost surely, 2^70431382 is an apocalyptic number.

70431382 is a deficient number, since it is larger than the sum of its proper divisors (57965930).

70431382 is a wasteful number, since it uses less digits than its factorization.

70431382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 70431382 is about 8392.3406746867. The cubic root of 70431382 is about 412.9733912625.

Adding to 70431382 its reverse (28313407), we get a palindrome (98744789).

The spelling of 70431382 in words is "seventy million, four hundred thirty-one thousand, three hundred eighty-two".