1139922720 has 336 divisors, whose sum is σ = 4189381560. Its totient is φ = 292626432.

The previous prime is 1139922697. The next prime is 1139922761. The reversal of 1139922720 is 272299311.

It can be written as a sum of positive squares in 4 ways, for example, as 806787216 + 333135504 = 28404^2 + 18252^2 .

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 55 ways as a sum of consecutive naturals, for example, 3382392 + ... + 3382728.

Almost surely, 2^1139922720 is an apocalyptic number.

1139922720 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 1139922720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094690780).

1139922720 is an abundant number, since it is smaller than the sum of its proper divisors (3049458840).

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

1139922720 is an equidigital number, since it uses as much as digits as its factorization.

1139922720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1139922720 is about 33762.7415948409. The cubic root of 1139922720 is about 1044.6203210016.

The spelling of 1139922720 in words is "one billion, one hundred thirty-nine million, nine hundred twenty-two thousand, seven hundred twenty".