1139468736 has 168 divisors, whose sum is σ = 3621121536. Its totient is φ = 314979840.

The previous prime is 1139468717. The next prime is 1139468773. The reversal of 1139468736 is 6378649311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289695 + ... + 293601.

Almost surely, 2^1139468736 is an apocalyptic number.

1139468736 is a gapful number since it is divisible by the number (16) 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 1139468736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1810560768).

1139468736 is an abundant number, since it is smaller than the sum of its proper divisors (2481652800).

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

1139468736 is a wasteful number, since it uses less digits than its factorization.

1139468736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3950 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 1139468736 is about 33756.0177746132. The cubic root of 1139468736 is about 1044.4816262537.

The spelling of 1139468736 in words is "one billion, one hundred thirty-nine million, four hundred sixty-eight thousand, seven hundred thirty-six".