642076474 has 8 divisors (see below), whose sum is σ = 1037200500. Its totient is φ = 296342976.

The previous prime is 642076471. The next prime is 642076483. The reversal of 642076474 is 474670246.

642076474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 610435849 + 31640625 = 24707^2 + 5625^2 .

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

It is not an unprimeable number, because it can be changed into a prime (642076471) 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, 12347599 + ... + 12347650.

Almost surely, 2^642076474 is an apocalyptic number.

642076474 is a deficient number, since it is larger than the sum of its proper divisors (395124026).

642076474 is a wasteful number, since it uses less digits than its factorization.

642076474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24695264.

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 642076474 is about 25339.2279677184. The cubic root of 642076474 is about 862.7048756182.

The spelling of 642076474 in words is "six hundred forty-two million, seventy-six thousand, four hundred seventy-four".