1369192638 has 16 divisors (see below), whose sum is σ = 2987329536. Its totient is φ = 414906840.

The previous prime is 1369192621. The next prime is 1369192661. The reversal of 1369192638 is 8362919631.

1369192638 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10372606 + ... + 10372737.

It is an arithmetic number, because the mean of its divisors is an integer number (186708096).

Almost surely, 2^1369192638 is an apocalyptic number.

1369192638 is an abundant number, since it is smaller than the sum of its proper divisors (1618136898).

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

1369192638 is a wasteful number, since it uses less digits than its factorization.

1369192638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20745359.

The product of its digits is 419904, while the sum is 48.

The square root of 1369192638 is about 37002.6031246452. The cubic root of 1369192638 is about 1110.4223261067.

The spelling of 1369192638 in words is "one billion, three hundred sixty-nine million, one hundred ninety-two thousand, six hundred thirty-eight".