1339245900 has 126 divisors (see below), whose sum is σ = 4357489332. Its totient is φ = 357112800.

The previous prime is 1339245899. The next prime is 1339245931. The reversal of 1339245900 is 95429331.

It is a happy number.

1339245900 is a `hidden beast` number, since 13 + 39 + 24 + 590 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 63715 + ... + 82085.

Almost surely, 2^1339245900 is an apocalyptic number.

1339245900 is a gapful number since it is divisible by the number (10) 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 1339245900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2178744666).

1339245900 is an abundant number, since it is smaller than the sum of its proper divisors (3018243432).

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

1339245900 is a wasteful number, since it uses less digits than its factorization.

1339245900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18403 (or 18381 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1339245900 is about 36595.7087648265. The cubic root of 1339245900 is about 1102.2669228241.

The spelling of 1339245900 in words is "one billion, three hundred thirty-nine million, two hundred forty-five thousand, nine hundred".