626464442 has 4 divisors (see below), whose sum is σ = 939696666. Its totient is φ = 313232220.

The previous prime is 626464441. The next prime is 626464469. The reversal of 626464442 is 244464626.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 605110801 + 21353641 = 24599^2 + 4621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 626464396 and 626464405.

It is not an unprimeable number, because it can be changed into a prime (626464441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156616109 + ... + 156616112.

Almost surely, 2^626464442 is an apocalyptic number.

626464442 is a deficient number, since it is larger than the sum of its proper divisors (313232224).

626464442 is a wasteful number, since it uses less digits than its factorization.

626464442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313232223.

The product of its digits is 221184, while the sum is 38.

The square root of 626464442 is about 25029.2717033477. The cubic root of 626464442 is about 855.6552286179.

The spelling of 626464442 in words is "six hundred twenty-six million, four hundred sixty-four thousand, four hundred forty-two".