1369109790 has 160 divisors (see below), whose sum is σ = 4103874720. Its totient is φ = 325472256.

The previous prime is 1369109783. The next prime is 1369109813. The reversal of 1369109790 is 979019631.

It is a super-3 number, since 3×1369109790³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 259014 + ... + 264246.

It is an arithmetic number, because the mean of its divisors is an integer number (25649217).

Almost surely, 2^1369109790 is an apocalyptic number.

1369109790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369109790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051937360).

1369109790 is an abundant number, since it is smaller than the sum of its proper divisors (2734764930).

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

1369109790 is a wasteful number, since it uses less digits than its factorization.

1369109790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 1369109790 is about 37001.4836189037. The cubic root of 1369109790 is about 1110.3999289358.

The spelling of 1369109790 in words is "one billion, three hundred sixty-nine million, one hundred nine thousand, seven hundred ninety".