102281436 has 18 divisors (see below), whose sum is σ = 258544832. Its totient is φ = 34093800.

The previous prime is 102281411. The next prime is 102281479. The reversal of 102281436 is 634182201.

102281436 is a `hidden beast` number, since 1 + 0 + 228 + 1 + 436 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×102281436² = 20922984300444192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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, 1420540 + ... + 1420611.

Almost surely, 2^102281436 is an apocalyptic number.

It is an amenable number.

102281436 is an abundant number, since it is smaller than the sum of its proper divisors (156263396).

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

102281436 is a wasteful number, since it uses less digits than its factorization.

102281436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841161 (or 2841156 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 102281436 is about 10113.4284987832. The cubic root of 102281436 is about 467.6622041933.

It can be divided in two parts, 10228 and 1436, that added together give a square (11664 = 108²).

The spelling of 102281436 in words is "one hundred two million, two hundred eighty-one thousand, four hundred thirty-six".