40620783 has 32 divisors (see below), whose sum is σ = 66364416. Its totient is φ = 21593088.

The previous prime is 40620779. The next prime is 40620799. The reversal of 40620783 is 38702604.

It is not a de Polignac number, because 40620783 - 2² = 40620779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40620783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40620383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16735 + ... + 19007.

It is an arithmetic number, because the mean of its divisors is an integer number (2073888).

Almost surely, 2^40620783 is an apocalyptic number.

40620783 is a deficient number, since it is larger than the sum of its proper divisors (25743633).

40620783 is a wasteful number, since it uses less digits than its factorization.

40620783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40620783 is about 6373.4435747090. The cubic root of 40620783 is about 343.7553216587.

The spelling of 40620783 in words is "forty million, six hundred twenty thousand, seven hundred eighty-three".