1399835040 has 48 divisors (see below), whose sum is σ = 4409481888. Its totient is φ = 373289216.

The previous prime is 1399835027. The next prime is 1399835069. The reversal of 1399835040 is 405389931.

1399835040 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1399834983 and 1399835001.

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, 1457682 + ... + 1458641.

It is an arithmetic number, because the mean of its divisors is an integer number (91864206).

Almost surely, 2^1399835040 is an apocalyptic number.

1399835040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1399835040 is an abundant number, since it is smaller than the sum of its proper divisors (3009646848).

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

1399835040 is a wasteful number, since it uses less digits than its factorization.

1399835040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916341 (or 2916333 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1399835040 is about 37414.3694320778. The cubic root of 1399835040 is about 1118.6450025156.

The spelling of 1399835040 in words is "one billion, three hundred ninety-nine million, eight hundred thirty-five thousand, forty".