2645247360 has 384 divisors, whose sum is σ = 10135895040. Its totient is φ = 584478720.

The previous prime is 2645247349. The next prime is 2645247439. The reversal of 2645247360 is 637425462.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2916027 + ... + 2916933.

It is an arithmetic number, because the mean of its divisors is an integer number (26395560).

Almost surely, 2^2645247360 is an apocalyptic number.

2645247360 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 2645247360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5067947520).

2645247360 is an abundant number, since it is smaller than the sum of its proper divisors (7490647680).

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

2645247360 is a wasteful number, since it uses less digits than its factorization.

2645247360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 2645247360 is about 51431.9682687723. The cubic root of 2645247360 is about 1382.9997338825. Note that the first 3 decimals are identical.

The spelling of 2645247360 in words is "two billion, six hundred forty-five million, two hundred forty-seven thousand, three hundred sixty".