1630604976 has 160 divisors (see below), whose sum is σ = 5655971328. Its totient is φ = 390942720.

The previous prime is 1630604959. The next prime is 1630604977. The reversal of 1630604976 is 6794060361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1630604977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31080 + ... + 65016.

Almost surely, 2^1630604976 is an apocalyptic number.

1630604976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630604976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2827985664).

1630604976 is an abundant number, since it is smaller than the sum of its proper divisors (4025366352).

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

1630604976 is a wasteful number, since it uses less digits than its factorization.

1630604976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33979 (or 33973 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1630604976 is about 40380.7500673279. The cubic root of 1630604976 is about 1177.0175029225.

It can be divided in two parts, 1630 and 604976, that added together give a palindrome (606606).

The spelling of 1630604976 in words is "one billion, six hundred thirty million, six hundred four thousand, nine hundred seventy-six".