1013320240 has 20 divisors (see below), whose sum is σ = 2355969744. Its totient is φ = 405328064.

The previous prime is 1013320229. The next prime is 1013320247. The reversal of 1013320240 is 420233101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1013320247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6333172 + ... + 6333331.

Almost surely, 2^1013320240 is an apocalyptic number.

1013320240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013320240 is an abundant number, since it is smaller than the sum of its proper divisors (1342649504).

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

1013320240 is a wasteful number, since it uses less digits than its factorization.

1013320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12666516 (or 12666510 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1013320240 is about 31832.6913722356. The cubic root of 1013320240 is about 1004.4205102951.

Adding to 1013320240 its reverse (420233101), we get a palindrome (1433553341).

The spelling of 1013320240 in words is "one billion, thirteen million, three hundred twenty thousand, two hundred forty".