40420790 has 32 divisors (see below), whose sum is σ = 77004000. Its totient is φ = 15234048.

The previous prime is 40420777. The next prime is 40420813. The reversal of 40420790 is 9702404.

40420790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 43046 + ... + 43974.

It is an arithmetic number, because the mean of its divisors is an integer number (2406375).

Almost surely, 2^40420790 is an apocalyptic number.

40420790 is a deficient number, since it is larger than the sum of its proper divisors (36583210).

40420790 is a wasteful number, since it uses less digits than its factorization.

40420790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40420790 is about 6357.7346594522. The cubic root of 40420790 is about 343.1902431557.

The spelling of 40420790 in words is "forty million, four hundred twenty thousand, seven hundred ninety".