400140896142 has 32 divisors (see below), whose sum is σ = 875970496800. Its totient is φ = 121101909120.

The previous prime is 400140896053. The next prime is 400140896143. The reversal of 400140896142 is 241698041004.

It is a super-2 number, since 2×400140896142² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 400140896142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400140896143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42044517 + ... + 42054032.

It is an arithmetic number, because the mean of its divisors is an integer number (27374078025).

Almost surely, 2^400140896142 is an apocalyptic number.

400140896142 is an abundant number, since it is smaller than the sum of its proper divisors (475829600658).

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

400140896142 is a wasteful number, since it uses less digits than its factorization.

400140896142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84098628.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 400140896142 in words is "four hundred billion, one hundred forty million, eight hundred ninety-six thousand, one hundred forty-two".