40628490 has 32 divisors (see below), whose sum is σ = 111438720. Its totient is φ = 9286464.

The previous prime is 40628477. The next prime is 40628491. The reversal of 40628490 is 9482604.

40628490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40628491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96525 + ... + 96944.

It is an arithmetic number, because the mean of its divisors is an integer number (3482460).

Almost surely, 2^40628490 is an apocalyptic number.

40628490 is an abundant number, since it is smaller than the sum of its proper divisors (70810230).

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

40628490 is a wasteful number, since it uses less digits than its factorization.

40628490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193486.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40628490 is about 6374.0481642360. The cubic root of 40628490 is about 343.7770605694. Note that the first 3 decimals are identical.

The spelling of 40628490 in words is "forty million, six hundred twenty-eight thousand, four hundred ninety".