2739022638 has 32 divisors (see below), whose sum is σ = 5987053440. Its totient is φ = 828478560.

The previous prime is 2739022631. The next prime is 2739022687. The reversal of 2739022638 is 8362209372.

It is a super-2 number, since 2×2739022638² = 15004490022952958088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2739022638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2739022631) 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, 1833 + ... + 74036.

It is an arithmetic number, because the mean of its divisors is an integer number (187095420).

Almost surely, 2^2739022638 is an apocalyptic number.

2739022638 is an abundant number, since it is smaller than the sum of its proper divisors (3248030802).

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

2739022638 is a wasteful number, since it uses less digits than its factorization.

2739022638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76432.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 2739022638 is about 52335.6727099213. The cubic root of 2739022638 is about 1399.1529975293.

The spelling of 2739022638 in words is "two billion, seven hundred thirty-nine million, twenty-two thousand, six hundred thirty-eight".