123927040 has 40 divisors (see below), whose sum is σ = 297140580. Its totient is φ = 49569792.

The previous prime is 123927031. The next prime is 123927061. The reversal of 123927040 is 40729321.

It can be written as a sum of positive squares in 2 ways, for example, as 112529664 + 11397376 = 10608^2 + 3376^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×123927040² = 30715822486323200, which contains 22 as substring.

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, 21645 + ... + 26764.

Almost surely, 2^123927040 is an apocalyptic number.

123927040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123927040 is an abundant number, since it is smaller than the sum of its proper divisors (173213540).

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

123927040 is an frugal number, since it uses more digits than its factorization.

123927040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48432 (or 48416 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 123927040 is about 11132.2522429201. The cubic root of 123927040 is about 498.5652737254.

The spelling of 123927040 in words is "one hundred twenty-three million, nine hundred twenty-seven thousand, forty".