32631630 has 32 divisors (see below), whose sum is σ = 79985664. Its totient is φ = 8516256.

The previous prime is 32631629. The next prime is 32631631. The reversal of 32631630 is 3613623.

It is an interprime number because it is at equal distance from previous prime (32631629) and next prime (32631631).

It is a self number, because there is not a number n which added to its sum of digits gives 32631630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32631631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10162 + ... + 12981.

It is an arithmetic number, because the mean of its divisors is an integer number (2499552).

Almost surely, 2^32631630 is an apocalyptic number.

32631630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32631630 is an abundant number, since it is smaller than the sum of its proper divisors (47354034).

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

32631630 is a wasteful number, since it uses less digits than its factorization.

32631630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23200.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 32631630 is about 5712.4101743485. The cubic root of 32631630 is about 319.5554700039. Note that the first 3 decimals are identical.

The spelling of 32631630 in words is "thirty-two million, six hundred thirty-one thousand, six hundred thirty".