642650350 has 24 divisors (see below), whose sum is σ = 1197869760. Its totient is φ = 256513920.

The previous prime is 642650347. The next prime is 642650363. The reversal of 642650350 is 53056246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10534 + ... + 37366.

It is an arithmetic number, because the mean of its divisors is an integer number (49911240).

Almost surely, 2^642650350 is an apocalyptic number.

642650350 is a deficient number, since it is larger than the sum of its proper divisors (555219410).

642650350 is a wasteful number, since it uses less digits than its factorization.

642650350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27324 (or 27319 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 642650350 is about 25350.5493037133. The cubic root of 642650350 is about 862.9618222682.

The spelling of 642650350 in words is "six hundred forty-two million, six hundred fifty thousand, three hundred fifty".