1630694052 has 48 divisors (see below), whose sum is σ = 4552938880. Its totient is φ = 501751584.

The previous prime is 1630694047. The next prime is 1630694053. The reversal of 1630694052 is 2504960361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1630693998 and 1630694016.

It is not an unprimeable number, because it can be changed into a prime (1630694053) 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, 579328 + ... + 582135.

Almost surely, 2^1630694052 is an apocalyptic number.

1630694052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1630694052 is an abundant number, since it is smaller than the sum of its proper divisors (2922244828).

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

1630694052 is a wasteful number, since it uses less digits than its factorization.

1630694052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161489 (or 1161481 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1630694052 is about 40381.8530035460. The cubic root of 1630694052 is about 1177.0389350706.

The spelling of 1630694052 in words is "one billion, six hundred thirty million, six hundred ninety-four thousand, fifty-two".