400402204 has 6 divisors (see below), whose sum is σ = 700703864. Its totient is φ = 200201100.

The previous prime is 400402201. The next prime is 400402213. The reversal of 400402204 is 402204004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400402201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050272 + ... + 50050279.

Almost surely, 2^400402204 is an apocalyptic number.

It is an amenable number.

400402204 is a deficient number, since it is larger than the sum of its proper divisors (300301660).

400402204 is a wasteful number, since it uses less digits than its factorization.

400402204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100100555 (or 100100553 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 400402204 is about 20010.0525736441. The cubic root of 400402204 is about 737.0531723697.

Adding to 400402204 its reverse (402204004), we get a palindrome (802606208).

The spelling of 400402204 in words is "four hundred million, four hundred two thousand, two hundred four".