1399371120 has 160 divisors (see below), whose sum is σ = 5508695040. Its totient is φ = 319852800.

The previous prime is 1399371107. The next prime is 1399371121. The reversal of 1399371120 is 211739931.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399371121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31156 + ... + 61395.

It is an arithmetic number, because the mean of its divisors is an integer number (34429344).

Almost surely, 2^1399371120 is an apocalyptic number.

1399371120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1399371120 is an abundant number, since it is smaller than the sum of its proper divisors (4109323920).

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

1399371120 is a wasteful number, since it uses less digits than its factorization.

1399371120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92580 (or 92568 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 1399371120 is about 37408.1691612942. The cubic root of 1399371120 is about 1118.5214119698.

The spelling of 1399371120 in words is "one billion, three hundred ninety-nine million, three hundred seventy-one thousand, one hundred twenty".