400505102 has 4 divisors (see below), whose sum is σ = 600757656. Its totient is φ = 200252550.

The previous prime is 400505099. The next prime is 400505111. The reversal of 400505102 is 201505004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100126274 + ... + 100126277.

It is an arithmetic number, because the mean of its divisors is an integer number (150189414).

Almost surely, 2^400505102 is an apocalyptic number.

400505102 is a deficient number, since it is larger than the sum of its proper divisors (200252554).

400505102 is a wasteful number, since it uses less digits than its factorization.

400505102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200252553.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 400505102 is about 20012.6235661394. The cubic root of 400505102 is about 737.1163045576.

The spelling of 400505102 in words is "four hundred million, five hundred five thousand, one hundred two".