13641992 has 48 divisors (see below), whose sum is σ = 32055660. Its totient is φ = 5394816.

The previous prime is 13641989. The next prime is 13642001. The reversal of 13641992 is 29914631.

It can be written as a sum of positive squares in 2 ways, for example, as 10278436 + 3363556 = 3206^2 + 1834^2 .

It is a super-2 number, since 2×13641992² = 372207891456128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3758 + ... + 6434.

Almost surely, 2^13641992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13641992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16027830).

13641992 is an abundant number, since it is smaller than the sum of its proper divisors (18413668).

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

13641992 is a wasteful number, since it uses less digits than its factorization.

13641992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710 (or 2699 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The square root of 13641992 is about 3693.5067347982. The cubic root of 13641992 is about 238.9420562950.

The spelling of 13641992 in words is "thirteen million, six hundred forty-one thousand, nine hundred ninety-two".