402240204 has 18 divisors (see below), whose sum is σ = 1016773940. Its totient is φ = 134080056.

The previous prime is 402240197. The next prime is 402240211. The reversal of 402240204 is 402042204.

402240204 is a `hidden beast` number, since 402 + 240 + 20 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (402240197) and next prime (402240211).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5586634 + ... + 5586705.

Almost surely, 2^402240204 is an apocalyptic number.

It is an amenable number.

402240204 is an abundant number, since it is smaller than the sum of its proper divisors (614533736).

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

402240204 is a wasteful number, since it uses less digits than its factorization.

402240204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173349 (or 11173344 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 402240204 is about 20055.9269045337. The cubic root of 402240204 is about 738.1792368762.

Adding to 402240204 its reverse (402042204), we get a palindrome (804282408).

The spelling of 402240204 in words is "four hundred two million, two hundred forty thousand, two hundred four".