626463264 has 96 divisors (see below), whose sum is σ = 1883298816. Its totient is φ = 178617600.

The previous prime is 626463247. The next prime is 626463287. The reversal of 626463264 is 462364626.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×626463264² = 784912442283067392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595539 + ... + 596589.

It is an arithmetic number, because the mean of its divisors is an integer number (19617696).

Almost surely, 2^626463264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 626463264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941649408).

626463264 is an abundant number, since it is smaller than the sum of its proper divisors (1256835552).

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

626463264 is a wasteful number, since it uses less digits than its factorization.

626463264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 1950 counting only the distinct ones).

The product of its digits is 248832, while the sum is 39.

The square root of 626463264 is about 25029.2481708900. The cubic root of 626463264 is about 855.6546922946.

The spelling of 626463264 in words is "six hundred twenty-six million, four hundred sixty-three thousand, two hundred sixty-four".