1308537472 has 64 divisors (see below), whose sum is σ = 2910108960. Its totient is φ = 580930560.

The previous prime is 1308537457. The next prime is 1308537473. The reversal of 1308537472 is 2747358031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1308537473) 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, 49738 + ... + 71350.

Almost surely, 2^1308537472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1308537472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455054480).

1308537472 is an abundant number, since it is smaller than the sum of its proper divisors (1601571488).

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

1308537472 is a wasteful number, since it uses less digits than its factorization.

1308537472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21681 (or 21669 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1308537472 is about 36173.7124442599. The cubic root of 1308537472 is about 1093.7768350771.

The spelling of 1308537472 in words is "one billion, three hundred eight million, five hundred thirty-seven thousand, four hundred seventy-two".