400504102 has 4 divisors (see below), whose sum is σ = 600756156. Its totient is φ = 200252050.

The previous prime is 400504033. The next prime is 400504109. The reversal of 400504102 is 201405004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400504109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100126024 + ... + 100126027.

It is an arithmetic number, because the mean of its divisors is an integer number (150189039).

Almost surely, 2^400504102 is an apocalyptic number.

400504102 is a deficient number, since it is larger than the sum of its proper divisors (200252054).

400504102 is a wasteful number, since it uses less digits than its factorization.

400504102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200252053.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 400504102 is about 20012.5985818934. The cubic root of 400504102 is about 737.1156910682.

Adding to 400504102 its reverse (201405004), we get a palindrome (601909106).

The spelling of 400504102 in words is "four hundred million, five hundred four thousand, one hundred two".