1629625626 has 12 divisors (see below), whose sum is σ = 3530855562. Its totient is φ = 543208536.

The previous prime is 1629625603. The next prime is 1629625631. The reversal of 1629625626 is 6265269261.

It is a happy number.

1629625626 is a `hidden beast` number, since 1 + 6 + 29 + 62 + 562 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1186733601 + 442892025 = 34449^2 + 21045^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45267361 + ... + 45267396.

Almost surely, 2^1629625626 is an apocalyptic number.

1629625626 is an abundant number, since it is smaller than the sum of its proper divisors (1901229936).

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

1629625626 is a wasteful number, since it uses less digits than its factorization.

1629625626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90534765 (or 90534762 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 1629625626 is about 40368.6217996106. The cubic root of 1629625626 is about 1176.7818147453.

The spelling of 1629625626 in words is "one billion, six hundred twenty-nine million, six hundred twenty-five thousand, six hundred twenty-six".