402421003154250 has 32 divisors (see below), whose sum is σ = 1004442823874880. Its totient is φ = 107312267507600.

The previous prime is 402421003154239. The next prime is 402421003154297. The reversal of 402421003154250 is 52451300124204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268280668020 + ... + 268280669519.

It is an arithmetic number, because the mean of its divisors is an integer number (31388838246090).

Almost surely, 2^{402421003154250} is an apocalyptic number.

402421003154250 is an abundant number, since it is smaller than the sum of its proper divisors (602021820720630).

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

402421003154250 is a wasteful number, since it uses less digits than its factorization.

402421003154250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536561337559 (or 536561337549 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 402421003154250 its reverse (52451300124204), we get a palindrome (454872303278454).

The spelling of 402421003154250 in words is "four hundred two trillion, four hundred twenty-one billion, three million, one hundred fifty-four thousand, two hundred fifty".