400201204 has 12 divisors (see below), whose sum is σ = 754225444. Its totient is φ = 184708224.

The previous prime is 400201163. The next prime is 400201223. The reversal of 400201204 is 402102004.

It can be written as a sum of positive squares in 2 ways, for example, as 158709604 + 241491600 = 12598^2 + 15540^2 .

It is a super-2 number, since 2×400201204² = 320322007366099232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 3848037 + ... + 3848140.

Almost surely, 2^400201204 is an apocalyptic number.

It is an amenable number.

400201204 is a deficient number, since it is larger than the sum of its proper divisors (354024240).

400201204 is a wasteful number, since it uses less digits than its factorization.

400201204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696194 (or 7696192 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 400201204 is about 20005.0294676114. The cubic root of 400201204 is about 736.9298193321.

Adding to 400201204 its reverse (402102004), we get a palindrome (802303208).

The spelling of 400201204 in words is "four hundred million, two hundred one thousand, two hundred four".