70290312 has 32 divisors (see below), whose sum is σ = 176299200. Its totient is φ = 23353664.

The previous prime is 70290289. The next prime is 70290373. The reversal of 70290312 is 21309207.

It is a super-2 number, since 2×70290312² = 9881455922114688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2989 + ... + 12227.

It is an arithmetic number, because the mean of its divisors is an integer number (5509350).

Almost surely, 2^70290312 is an apocalyptic number.

It is an amenable number.

70290312 is an abundant number, since it is smaller than the sum of its proper divisors (106008888).

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

70290312 is a wasteful number, since it uses less digits than its factorization.

70290312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9565 (or 9561 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 70290312 is about 8383.9317745316. The cubic root of 70290312 is about 412.6974863373.

Adding to 70290312 its reverse (21309207), we get a palindrome (91599519).

The spelling of 70290312 in words is "seventy million, two hundred ninety thousand, three hundred twelve".