2626145540 has 24 divisors (see below), whose sum is σ = 5532882432. Its totient is φ = 1047034080.

The previous prime is 2626145537. The next prime is 2626145549. The reversal of 2626145540 is 455416262.

It is a self number, because there is not a number n which added to its sum of digits gives 2626145540.

It is not an unprimeable number, because it can be changed into a prime (2626145549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207716 + ... + 219995.

It is an arithmetic number, because the mean of its divisors is an integer number (230536768).

Almost surely, 2^2626145540 is an apocalyptic number.

2626145540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2626145540 is an abundant number, since it is smaller than the sum of its proper divisors (2906736892).

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

2626145540 is a wasteful number, since it uses less digits than its factorization.

2626145540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428027 (or 428025 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2626145540 is about 51245.9319361059. The cubic root of 2626145540 is about 1379.6627230080.

The spelling of 2626145540 in words is "two billion, six hundred twenty-six million, one hundred forty-five thousand, five hundred forty".