402451004 has 24 divisors (see below), whose sum is σ = 716284800. Its totient is φ = 197814960.

The previous prime is 402451003. The next prime is 402451019. The reversal of 402451004 is 400154204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402451001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105767 + ... + 109505.

It is an arithmetic number, because the mean of its divisors is an integer number (29845200).

Almost surely, 2^402451004 is an apocalyptic number.

It is an amenable number.

402451004 is a deficient number, since it is larger than the sum of its proper divisors (313833796).

402451004 is a wasteful number, since it uses less digits than its factorization.

402451004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193 (or 4191 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 402451004 is about 20061.1815205386. The cubic root of 402451004 is about 738.3081656494.

The spelling of 402451004 in words is "four hundred two million, four hundred fifty-one thousand, four".