1369724928 has 192 divisors, whose sum is σ = 4292870400. Its totient is φ = 382894080.

The previous prime is 1369724903. The next prime is 1369724947. The reversal of 1369724928 is 8294279631.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1369724928² = 3752292756769210368, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877813 + ... + 879371.

It is an arithmetic number, because the mean of its divisors is an integer number (22358700).

Almost surely, 2^1369724928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369724928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2146435200).

1369724928 is an abundant number, since it is smaller than the sum of its proper divisors (2923145472).

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

1369724928 is a wasteful number, since it uses less digits than its factorization.

1369724928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1588 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 1369724928 is about 37009.7950278031. The cubic root of 1369724928 is about 1110.5662041132.

The spelling of 1369724928 in words is "one billion, three hundred sixty-nine million, seven hundred twenty-four thousand, nine hundred twenty-eight".