400266426426 has 16 divisors (see below), whose sum is σ = 800546657184. Its totient is φ = 133419841424.

The previous prime is 400266426407. The next prime is 400266426433. The reversal of 400266426426 is 624624662004.

It is a super-2 number, since 2×400266426426² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177036 + ... + 912071.

It is an arithmetic number, because the mean of its divisors is an integer number (50034166074).

Almost surely, 2^400266426426 is an apocalyptic number.

400266426426 is an abundant number, since it is smaller than the sum of its proper divisors (400280230758).

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

400266426426 is a wasteful number, since it uses less digits than its factorization.

400266426426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150365.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 400266426426 in words is "four hundred billion, two hundred sixty-six million, four hundred twenty-six thousand, four hundred twenty-six".