400225516426 has 4 divisors (see below), whose sum is σ = 600338274642. Its totient is φ = 200112758212.

The previous prime is 400225516417. The next prime is 400225516447. The reversal of 400225516426 is 624615522004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 363916595025 + 36308921401 = 603255^2 + 190549^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100056379105 + ... + 100056379108.

Almost surely, 2^400225516426 is an apocalyptic number.

400225516426 is a deficient number, since it is larger than the sum of its proper divisors (200112758216).

400225516426 is a wasteful number, since it uses less digits than its factorization.

400225516426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200112758215.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 400225516426 in words is "four hundred billion, two hundred twenty-five million, five hundred sixteen thousand, four hundred twenty-six".