2637992 has 48 divisors (see below), whose sum is σ = 6041760. Its totient is φ = 1057536.

The previous prime is 2637983. The next prime is 2637997. The reversal of 2637992 is 2997362.

Its product of digits (40824) is a multiple of the sum of its prime divisors (189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2637997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16103 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (125870).

2^2637992 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 2637992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3020880).

2637992 is an abundant number, since it is smaller than the sum of its proper divisors (3403768).

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

2637992 is a wasteful number, since it uses less digits than its factorization.

2637992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 189 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 2637992 is about 1624.1896440995. The cubic root of 2637992 is about 138.1734149805.

The spelling of 2637992 in words is "two million, six hundred thirty-seven thousand, nine hundred ninety-two".