1102638436 has 9 divisors (see below), whose sum is σ = 1929733491. Its totient is φ = 551286012.

The previous prime is 1102638421. The next prime is 1102638437. The reversal of 1102638436 is 6348362011.

It is a happy number.

The square root of 1102638436 is 33206.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102638437) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 58111 + ... + 74713.

Almost surely, 2^1102638436 is an apocalyptic number.

1102638436 is the 33206-th square number.

It is an amenable number.

1102638436 is a deficient number, since it is larger than the sum of its proper divisors (827095055).

1102638436 is an frugal number, since it uses more digits than its factorization.

1102638436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33210 (or 16605 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The cubic root of 1102638436 is about 1033.1047913117.

Multiplying 1102638436 by its product of nonzero digits (20736), we get a square (22864310608896 = 4781664²).

The spelling of 1102638436 in words is "one billion, one hundred two million, six hundred thirty-eight thousand, four hundred thirty-six".