40118623402 has 64 divisors (see below), whose sum is σ = 76152545280. Its totient is φ = 15581649600.

The previous prime is 40118623387. The next prime is 40118623409. The reversal of 40118623402 is 20432681104.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (40118623409) 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, 105549 + ... + 302287.

It is an arithmetic number, because the mean of its divisors is an integer number (1189883520).

Almost surely, 2^40118623402 is an apocalyptic number.

40118623402 is a deficient number, since it is larger than the sum of its proper divisors (36033921878).

40118623402 is a wasteful number, since it uses less digits than its factorization.

40118623402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196819.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 40118623402 in words is "forty billion, one hundred eighteen million, six hundred twenty-three thousand, four hundred two".