40913028 has 36 divisors (see below), whose sum is σ = 111375628. Its totient is φ = 12588480.

The previous prime is 40913011. The next prime is 40913029. The reversal of 40913028 is 82031904.

It can be written as a sum of positive squares in 2 ways, for example, as 18045504 + 22867524 = 4248^2 + 4782^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 40912992 and 40913010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40913029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43243 + ... + 44178.

Almost surely, 2^40913028 is an apocalyptic number.

It is an amenable number.

40913028 is an abundant number, since it is smaller than the sum of its proper divisors (70462600).

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

40913028 is a wasteful number, since it uses less digits than its factorization.

40913028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87444 (or 87439 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40913028 is about 6396.3292598177. The cubic root of 40913028 is about 344.5777316358.

The spelling of 40913028 in words is "forty million, nine hundred thirteen thousand, twenty-eight".