1313372478 has 48 divisors (see below), whose sum is σ = 2954464128. Its totient is φ = 388726800.

The previous prime is 1313372453. The next prime is 1313372483. The reversal of 1313372478 is 8742733131.

1313372478 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10183 + ... + 52253.

It is an arithmetic number, because the mean of its divisors is an integer number (61551336).

Almost surely, 2^1313372478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313372478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477232064).

1313372478 is an abundant number, since it is smaller than the sum of its proper divisors (1641091650).

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

1313372478 is a wasteful number, since it uses less digits than its factorization.

1313372478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42141 (or 42130 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 1313372478 is about 36240.4812054145. The cubic root of 1313372478 is about 1095.1223365746.

The spelling of 1313372478 in words is "one billion, three hundred thirteen million, three hundred seventy-two thousand, four hundred seventy-eight".