1369438790 has 32 divisors (see below), whose sum is σ = 2484315360. Its totient is φ = 543499264.

The previous prime is 1369438789. The next prime is 1369438801. The reversal of 1369438790 is 978349631.

1369438790 = 191² + 192² + ... + 1602².

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, 800456 + ... + 802164.

It is an arithmetic number, because the mean of its divisors is an integer number (77634855).

Almost surely, 2^1369438790 is an apocalyptic number.

1369438790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1369438790 is a deficient number, since it is larger than the sum of its proper divisors (1114876570).

1369438790 is a wasteful number, since it uses less digits than its factorization.

1369438790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 1369438790 is about 37005.9291195343. The cubic root of 1369438790 is about 1110.4888656353.

The spelling of 1369438790 in words is "one billion, three hundred sixty-nine million, four hundred thirty-eight thousand, seven hundred ninety".