40970128 has 20 divisors (see below), whose sum is σ = 80338608. Its totient is φ = 20237600.

The previous prime is 40970093. The next prime is 40970129. The reversal of 40970128 is 82107904.

It is a self number, because there is not a number n which added to its sum of digits gives 40970128.

It is not an unprimeable number, because it can be changed into a prime (40970129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14098 + ... + 16753.

Almost surely, 2^40970128 is an apocalyptic number.

It is an amenable number.

40970128 is a deficient number, since it is larger than the sum of its proper divisors (39368480).

40970128 is a wasteful number, since it uses less digits than its factorization.

40970128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30942 (or 30936 counting only the distinct ones).

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

The square root of 40970128 is about 6400.7912010938. The cubic root of 40970128 is about 344.7379596712.

The spelling of 40970128 in words is "forty million, nine hundred seventy thousand, one hundred twenty-eight".