402000554 has 8 divisors (see below), whose sum is σ = 608855520. Its totient is φ = 199048716.

The previous prime is 402000517. The next prime is 402000631. The reversal of 402000554 is 455000204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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, 975524 + ... + 975935.

It is an arithmetic number, because the mean of its divisors is an integer number (76106940).

Almost surely, 2^402000554 is an apocalyptic number.

402000554 is a deficient number, since it is larger than the sum of its proper divisors (206854966).

402000554 is a wasteful number, since it uses less digits than its factorization.

402000554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951564.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 402000554 is about 20049.9514712630. The cubic root of 402000554 is about 738.0326082394.

Adding to 402000554 its reverse (455000204), we get a palindrome (857000758).

The spelling of 402000554 in words is "four hundred two million, five hundred fifty-four", and thus it is an aban number.