40388461946 has 32 divisors (see below), whose sum is σ = 70210195968. Its totient is φ = 17066298240.

The previous prime is 40388461901. The next prime is 40388461963. The reversal of 40388461946 is 64916488304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4196636 + ... + 4206248.

It is an arithmetic number, because the mean of its divisors is an integer number (2194068624).

Almost surely, 2^40388461946 is an apocalyptic number.

40388461946 is a deficient number, since it is larger than the sum of its proper divisors (29821734022).

40388461946 is a wasteful number, since it uses less digits than its factorization.

40388461946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13806.

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 40388461946 in words is "forty billion, three hundred eighty-eight million, four hundred sixty-one thousand, nine hundred forty-six".