400100409998 has 32 divisors (see below), whose sum is σ = 627209399520. Its totient is φ = 191173360000.

The previous prime is 400100409997. The next prime is 400100410091. The reversal of 400100409998 is 899904001004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400100409997) 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, 19737188 + ... + 19757448.

It is an arithmetic number, because the mean of its divisors is an integer number (19600293735).

Almost surely, 2^400100409998 is an apocalyptic number.

400100409998 is a deficient number, since it is larger than the sum of its proper divisors (227108989522).

400100409998 is a wasteful number, since it uses less digits than its factorization.

400100409998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23764.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 400100409998 in words is "four hundred billion, one hundred million, four hundred nine thousand, nine hundred ninety-eight".