402250015 has 8 divisors (see below), whose sum is σ = 486173520. Its totient is φ = 319484352.

The previous prime is 402250001. The next prime is 402250049. The reversal of 402250015 is 510052204.

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

It is a cyclic number.

It is not a de Polignac number, because 402250015 - 2¹⁷ = 402118943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402249974 and 402250001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288694 + ... + 290083.

It is an arithmetic number, because the mean of its divisors is an integer number (60771690).

Almost surely, 2^402250015 is an apocalyptic number.

402250015 is a deficient number, since it is larger than the sum of its proper divisors (83923505).

402250015 is a wasteful number, since it uses less digits than its factorization.

402250015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578921.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 402250015 is about 20056.1714940813. The cubic root of 402250015 is about 738.1852384457.

The spelling of 402250015 in words is "four hundred two million, two hundred fifty thousand, fifteen".