1369638 has 12 divisors (see below), whose sum is σ = 2967588. Its totient is φ = 456540.

The previous prime is 1369619. The next prime is 1369651. The reversal of 1369638 is 8369631.

It is a happy number.

1369638 is a `hidden beast` number, since 13 + 6 + 9 + 638 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38028 + ... + 38063.

It is an arithmetic number, because the mean of its divisors is an integer number (247299).

2^1369638 is an apocalyptic number.

1369638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1369638 is an abundant number, since it is smaller than the sum of its proper divisors (1597950).

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

1369638 is a wasteful number, since it uses less digits than its factorization.

1369638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76099 (or 76096 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1369638 is about 1170.3153421194. The cubic root of 1369638 is about 111.0542710019.

The spelling of 1369638 in words is "one million, three hundred sixty-nine thousand, six hundred thirty-eight".