2634239740 has 48 divisors (see below), whose sum is σ = 6071909760. Its totient is φ = 952015680.

The previous prime is 2634239731. The next prime is 2634239759. The reversal of 2634239740 is 479324362.

It is a junction number, because it is equal to n+sod(n) for n = 2634239693 and 2634239702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870 + ... + 72589.

It is an arithmetic number, because the mean of its divisors is an integer number (126498120).

Almost surely, 2^2634239740 is an apocalyptic number.

2634239740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2634239740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035954880).

2634239740 is an abundant number, since it is smaller than the sum of its proper divisors (3437670020).

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

2634239740 is a wasteful number, since it uses less digits than its factorization.

2634239740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73642 (or 73640 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 2634239740 is about 51324.8452506191. The cubic root of 2634239740 is about 1381.0787161875.

The spelling of 2634239740 in words is "two billion, six hundred thirty-four million, two hundred thirty-nine thousand, seven hundred forty".