201399504 has 20 divisors (see below), whose sum is σ = 520282176. Its totient is φ = 67133152.

The previous prime is 201399469. The next prime is 201399511. The reversal of 201399504 is 405993102.

201399504 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201399504² = 81123520422892032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097864 + ... + 2097959.

Almost surely, 2^201399504 is an apocalyptic number.

201399504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

201399504 is an abundant number, since it is smaller than the sum of its proper divisors (318882672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201399504 is a wasteful number, since it uses less digits than its factorization.

201399504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195834 (or 4195828 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 201399504 is about 14191.5293044830. The cubic root of 201399504 is about 586.1644364527.

The spelling of 201399504 in words is "two hundred one million, three hundred ninety-nine thousand, five hundred four".