1626887460 has 48 divisors (see below), whose sum is σ = 4969403712. Its totient is φ = 394396800.

The previous prime is 1626887419. The next prime is 1626887461. The reversal of 1626887460 is 647886261.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1626887461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1231831 + ... + 1233150.

It is an arithmetic number, because the mean of its divisors is an integer number (103529244).

Almost surely, 2^1626887460 is an apocalyptic number.

1626887460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1626887460 is an abundant number, since it is smaller than the sum of its proper divisors (3342516252).

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

1626887460 is a wasteful number, since it uses less digits than its factorization.

1626887460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465004 (or 2465002 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 1626887460 is about 40334.6930073851. The cubic root of 1626887460 is about 1176.1223523724.

The spelling of 1626887460 in words is "one billion, six hundred twenty-six million, eight hundred eighty-seven thousand, four hundred sixty".