1630357332 has 48 divisors (see below), whose sum is σ = 3945682944. Its totient is φ = 523404000.

The previous prime is 1630357321. The next prime is 1630357361. The reversal of 1630357332 is 2337530361.

It is a junction number, because it is equal to n+sod(n) for n = 1630357293 and 1630357302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68107 + ... + 88877.

It is an arithmetic number, because the mean of its divisors is an integer number (82201728).

Almost surely, 2^1630357332 is an apocalyptic number.

1630357332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1630357332 is an abundant number, since it is smaller than the sum of its proper divisors (2315325612).

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

1630357332 is a wasteful number, since it uses less digits than its factorization.

1630357332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020 (or 21018 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 33.

The square root of 1630357332 is about 40377.6835888341. The cubic root of 1630357332 is about 1176.9579143886.

Adding to 1630357332 its reverse (2337530361), we get a palindrome (3967887693).

The spelling of 1630357332 in words is "one billion, six hundred thirty million, three hundred fifty-seven thousand, three hundred thirty-two".