40100438 has 16 divisors (see below), whose sum is σ = 69771264. Its totient is φ = 16929000.

The previous prime is 40100387. The next prime is 40100441. The reversal of 40100438 is 83400104.

40100438 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 7 ways as a sum of consecutive naturals, for example, 20438 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (4360704).

Almost surely, 2^40100438 is an apocalyptic number.

40100438 is a deficient number, since it is larger than the sum of its proper divisors (29670826).

40100438 is a wasteful number, since it uses less digits than its factorization.

40100438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42827.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40100438 is about 6332.4906632383. The cubic root of 40100438 is about 342.2811943609.

The spelling of 40100438 in words is "forty million, one hundred thousand, four hundred thirty-eight".