70129408 has 18 divisors (see below), whose sum is σ = 139985384. Its totient is φ = 35064576.

The previous prime is 70129387. The next prime is 70129417. The reversal of 70129408 is 80492107.

It is a self number, because there is not a number n which added to its sum of digits gives 70129408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136716 + ... + 137227.

Almost surely, 2^70129408 is an apocalyptic number.

It is an amenable number.

70129408 is a deficient number, since it is larger than the sum of its proper divisors (69855976).

70129408 is an equidigital number, since it uses as much as digits as its factorization.

70129408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273959 (or 273945 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 70129408 is about 8374.3303015823. The cubic root of 70129408 is about 412.3823390159.

The spelling of 70129408 in words is "seventy million, one hundred twenty-nine thousand, four hundred eight".