400108932698 has 8 divisors (see below), whose sum is σ = 600671584980. Its totient is φ = 199885071040.

The previous prime is 400108932697. The next prime is 400108932763. The reversal of 400108932698 is 896239801004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 395448549409 + 4660383289 = 628847^2 + 68267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (400108932697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84694703 + ... + 84699426.

Almost surely, 2^400108932698 is an apocalyptic number.

400108932698 is a deficient number, since it is larger than the sum of its proper divisors (200562652282).

400108932698 is a wasteful number, since it uses less digits than its factorization.

400108932698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169395312.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 400108932698 in words is "four hundred billion, one hundred eight million, nine hundred thirty-two thousand, six hundred ninety-eight".