402025554 has 48 divisors (see below), whose sum is σ = 1054055808. Its totient is φ = 108107136.

The previous prime is 402025553. The next prime is 402025573. The reversal of 402025554 is 455520204.

402025554 is a `hidden beast` number, since 402 + 0 + 255 + 5 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (402025553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91702 + ... + 95985.

It is an arithmetic number, because the mean of its divisors is an integer number (21959496).

Almost surely, 2^402025554 is an apocalyptic number.

402025554 is an abundant number, since it is smaller than the sum of its proper divisors (652030254).

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

402025554 is a wasteful number, since it uses less digits than its factorization.

402025554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187719 (or 187716 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 402025554 is about 20050.5749044759. The cubic root of 402025554 is about 738.0479070846.

Adding to 402025554 its reverse (455520204), we get a palindrome (857545758).

The spelling of 402025554 in words is "four hundred two million, twenty-five thousand, five hundred fifty-four".