642096758 has 8 divisors (see below), whose sum is σ = 976339128. Its totient is φ = 316650384.

The previous prime is 642096757. The next prime is 642096761. The reversal of 642096758 is 857690246.

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

It is a super-2 number, since 2×642096758² = 824576493268221128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642096757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198816 + ... + 2199107.

It is an arithmetic number, because the mean of its divisors is an integer number (122042391).

Almost surely, 2^642096758 is an apocalyptic number.

642096758 is a deficient number, since it is larger than the sum of its proper divisors (334242370).

642096758 is a wasteful number, since it uses less digits than its factorization.

642096758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397998.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 642096758 is about 25339.6282135315. The cubic root of 642096758 is about 862.7139601651.

The spelling of 642096758 in words is "six hundred forty-two million, ninety-six thousand, seven hundred fifty-eight".