40400231142 has 32 divisors (see below), whose sum is σ = 82540611072. Its totient is φ = 13176864864.

The previous prime is 40400231117. The next prime is 40400231167. The reversal of 40400231142 is 24113200404.

It is an interprime number because it is at equal distance from previous prime (40400231117) and next prime (40400231167).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248228 + ... + 1280184.

It is an arithmetic number, because the mean of its divisors is an integer number (2579394096).

Almost surely, 2^40400231142 is an apocalyptic number.

40400231142 is an abundant number, since it is smaller than the sum of its proper divisors (42140379930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40400231142 is a wasteful number, since it uses less digits than its factorization.

40400231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36492.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40400231142 its reverse (24113200404), we get a palindrome (64513431546).

The spelling of 40400231142 in words is "forty billion, four hundred million, two hundred thirty-one thousand, one hundred forty-two".