1513894940 has 24 divisors (see below), whose sum is σ = 3182841312. Its totient is φ = 604860480.

The previous prime is 1513894919. The next prime is 1513894969. The reversal of 1513894940 is 494983151.

It is a junction number, because it is equal to n+sod(n) for n = 1513894891 and 1513894900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25616 + ... + 60695.

It is an arithmetic number, because the mean of its divisors is an integer number (132618388).

Almost surely, 2^1513894940 is an apocalyptic number.

1513894940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513894940 is an abundant number, since it is smaller than the sum of its proper divisors (1668946372).

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

1513894940 is a wasteful number, since it uses less digits than its factorization.

1513894940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87197 (or 87195 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1513894940 is about 38908.8028600213. The cubic root of 1513894940 is about 1148.2379922759.

The spelling of 1513894940 in words is "one billion, five hundred thirteen million, eight hundred ninety-four thousand, nine hundred forty".