400202442042 has 32 divisors (see below), whose sum is σ = 876584237760. Its totient is φ = 121052106240.

The previous prime is 400202442041. The next prime is 400202442047. The reversal of 400202442042 is 240244202004.

It is not an unprimeable number, because it can be changed into a prime (400202442041) 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, 43476759 + ... + 43485962.

It is an arithmetic number, because the mean of its divisors is an integer number (27393257430).

Almost surely, 2^400202442042 is an apocalyptic number.

400202442042 is an abundant number, since it is smaller than the sum of its proper divisors (476381795718).

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

400202442042 is a wasteful number, since it uses less digits than its factorization.

400202442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86962798.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 400202442042 its reverse (240244202004), we get a palindrome (640446644046).

The spelling of 400202442042 in words is "four hundred billion, two hundred two million, four hundred forty-two thousand, forty-two".