642269350 has 48 divisors (see below), whose sum is σ = 1331499600. Its totient is φ = 229063680.

The previous prime is 642269297. The next prime is 642269413. The reversal of 642269350 is 53962246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3735 + ... + 36034.

It is an arithmetic number, because the mean of its divisors is an integer number (27739575).

Almost surely, 2^642269350 is an apocalyptic number.

642269350 is an abundant number, since it is smaller than the sum of its proper divisors (689230250).

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

642269350 is a wasteful number, since it uses less digits than its factorization.

642269350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39817 (or 39812 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 642269350 is about 25343.0335595406. The cubic root of 642269350 is about 862.7912507951.

The spelling of 642269350 in words is "six hundred forty-two million, two hundred sixty-nine thousand, three hundred fifty".