1399449470 has 16 divisors (see below), whose sum is σ = 2519788608. Its totient is φ = 559606560.

The previous prime is 1399449463. The next prime is 1399449481. The reversal of 1399449470 is 749449931.

It is a Curzon number.

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, 15275 + ... + 55065.

It is an arithmetic number, because the mean of its divisors is an integer number (157486788).

Almost surely, 2^1399449470 is an apocalyptic number.

1399449470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399449470 is a deficient number, since it is larger than the sum of its proper divisors (1120339138).

1399449470 is a wasteful number, since it uses less digits than its factorization.

1399449470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43315.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1399449470 is about 37409.2163777858. The cubic root of 1399449470 is about 1118.5422867079.

The spelling of 1399449470 in words is "one billion, three hundred ninety-nine million, four hundred forty-nine thousand, four hundred seventy".