2662638 has 16 divisors (see below), whose sum is σ = 5809536. Its totient is φ = 806840.

The previous prime is 2662607. The next prime is 2662651. The reversal of 2662638 is 8362662.

It is a super-2 number, since 2×2662638² = 14179282238088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2662599 and 2662608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20106 + ... + 20237.

It is an arithmetic number, because the mean of its divisors is an integer number (363096).

2^2662638 is an apocalyptic number.

2662638 is an abundant number, since it is smaller than the sum of its proper divisors (3146898).

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

2662638 is a wasteful number, since it uses less digits than its factorization.

2662638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40359.

The product of its digits is 20736, while the sum is 33.

The square root of 2662638 is about 1631.7591734076. The cubic root of 2662638 is about 138.6023866375.

The spelling of 2662638 in words is "two million, six hundred sixty-two thousand, six hundred thirty-eight".