123280632 has 24 divisors (see below), whose sum is σ = 333885240. Its totient is φ = 41093520.

The previous prime is 123280631. The next prime is 123280643. The reversal of 123280632 is 236082321.

123280632 is a `hidden beast` number, since 1 + 2 + 3 + 28 + 0 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×123280632² = 30396228452638848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123280596 and 123280605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123280631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 856044 + ... + 856187.

It is an arithmetic number, because the mean of its divisors is an integer number (13911885).

Almost surely, 2^123280632 is an apocalyptic number.

123280632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123280632 is an abundant number, since it is smaller than the sum of its proper divisors (210604608).

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

123280632 is a wasteful number, since it uses less digits than its factorization.

123280632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712243 (or 1712236 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 123280632 is about 11103.1811657741. The cubic root of 123280632 is about 497.6969172409.

The spelling of 123280632 in words is "one hundred twenty-three million, two hundred eighty thousand, six hundred thirty-two".