2536537440 has 96 divisors (see below), whose sum is σ = 8125608960. Its totient is φ = 664937984.

The previous prime is 2536537391. The next prime is 2536537457. The reversal of 2536537440 is 447356352.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16464 + ... + 73103.

It is an arithmetic number, because the mean of its divisors is an integer number (84641760).

Almost surely, 2^2536537440 is an apocalyptic number.

2536537440 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 2536537440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4062804480).

2536537440 is an abundant number, since it is smaller than the sum of its proper divisors (5589071520).

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

2536537440 is a wasteful number, since it uses less digits than its factorization.

2536537440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89644 (or 89636 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 39.

The square root of 2536537440 is about 50364.0490826542. The cubic root of 2536537440 is about 1363.7887146468.

The spelling of 2536537440 in words is "two billion, five hundred thirty-six million, five hundred thirty-seven thousand, four hundred forty".