70129424 has 20 divisors (see below), whose sum is σ = 140562060. Its totient is φ = 33855360.

The previous prime is 70129417. The next prime is 70129429. The reversal of 70129424 is 42492107.

It can be written as a sum of positive squares in 2 ways, for example, as 52823824 + 17305600 = 7268^2 + 4160^2 .

It is a super-2 number, since 2×70129424² = 9836272221143552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (70129429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75107 + ... + 76034.

It is an arithmetic number, because the mean of its divisors is an integer number (7028103).

Almost surely, 2^70129424 is an apocalyptic number.

It is an amenable number.

70129424 is an abundant number, since it is smaller than the sum of its proper divisors (70432636).

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

70129424 is a wasteful number, since it uses less digits than its factorization.

70129424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151178 (or 151172 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 70129424 is about 8374.3312568825. The cubic root of 70129424 is about 412.3823703776.

The spelling of 70129424 in words is "seventy million, one hundred twenty-nine thousand, four hundred twenty-four".