123926480 has 20 divisors (see below), whose sum is σ = 288129252. Its totient is φ = 49570560.

The previous prime is 123926471. The next prime is 123926489. The reversal of 123926480 is 84629321.

It is an interprime number because it is at equal distance from previous prime (123926471) and next prime (123926489).

It can be written as a sum of positive squares in 2 ways, for example, as 25361296 + 98565184 = 5036^2 + 9928^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 123926480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123926489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774461 + ... + 774620.

Almost surely, 2^123926480 is an apocalyptic number.

123926480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123926480 is an abundant number, since it is smaller than the sum of its proper divisors (164202772).

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

123926480 is a wasteful number, since it uses less digits than its factorization.

123926480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549094 (or 1549088 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 123926480 is about 11132.2270907487. The cubic root of 123926480 is about 498.5645227541.

The spelling of 123926480 in words is "one hundred twenty-three million, nine hundred twenty-six thousand, four hundred eighty".