2603376640 has 56 divisors (see below), whose sum is σ = 6247820880. Its totient is φ = 1041334272.

The previous prime is 2603376623. The next prime is 2603376641. The reversal of 2603376640 is 466733062.

It is a self number, because there is not a number n which added to its sum of digits gives 2603376640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2603376641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9181 + ... + 72739.

It is an arithmetic number, because the mean of its divisors is an integer number (111568230).

Almost surely, 2^2603376640 is an apocalyptic number.

2603376640 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 2603376640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3123910440).

2603376640 is an abundant number, since it is smaller than the sum of its proper divisors (3644444240).

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

2603376640 is an frugal number, since it uses more digits than its factorization.

2603376640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63590 (or 63566 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 2603376640 is about 51023.2950719571. The cubic root of 2603376640 is about 1375.6638804040.

The spelling of 2603376640 in words is "two billion, six hundred three million, three hundred seventy-six thousand, six hundred forty".