400022136534 has 32 divisors (see below), whose sum is σ = 800929188864. Its totient is φ = 133193305440.

The previous prime is 400022136511. The next prime is 400022136551. The reversal of 400022136534 is 435631220004.

It is a super-2 number, since 2×400022136534² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 26200987 + ... + 26216249.

It is an arithmetic number, because the mean of its divisors is an integer number (25029037152).

Almost surely, 2^400022136534 is an apocalyptic number.

400022136534 is an abundant number, since it is smaller than the sum of its proper divisors (400907052330).

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

400022136534 is a wasteful number, since it uses less digits than its factorization.

400022136534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19812.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 400022136534 its reverse (435631220004), we get a palindrome (835653356538).

The spelling of 400022136534 in words is "four hundred billion, twenty-two million, one hundred thirty-six thousand, five hundred thirty-four".