123263644 has 12 divisors (see below), whose sum is σ = 246527344. Its totient is φ = 52827264.

The previous prime is 123263633. The next prime is 123263653. The reversal of 123263644 is 446362321.

123263644 is an admirable number.

It is a hoax number, since the sum of its digits (31) 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 3 ways as a sum of consecutive naturals, for example, 2201109 + ... + 2201164.

Almost surely, 2^123263644 is an apocalyptic number.

123263644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123263644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123263644 is a wasteful number, since it uses less digits than its factorization.

123263644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402284 (or 4402282 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 123263644 is about 11102.4161334369. The cubic root of 123263644 is about 497.6740554080.

The spelling of 123263644 in words is "one hundred twenty-three million, two hundred sixty-three thousand, six hundred forty-four".