123739480 has 16 divisors (see below), whose sum is σ = 278413920. Its totient is φ = 49495776.

The previous prime is 123739403. The next prime is 123739487. The reversal of 123739480 is 84937321.

It is a super-2 number, since 2×123739480² = 30622917821340800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123739487) 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, 1546704 + ... + 1546783.

It is an arithmetic number, because the mean of its divisors is an integer number (17400870).

Almost surely, 2^123739480 is an apocalyptic number.

123739480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123739480 is an abundant number, since it is smaller than the sum of its proper divisors (154674440).

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

123739480 is a wasteful number, since it uses less digits than its factorization.

123739480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093498 (or 3093494 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 123739480 is about 11123.8248817572. The cubic root of 123739480 is about 498.3136253421.

The spelling of 123739480 in words is "one hundred twenty-three million, seven hundred thirty-nine thousand, four hundred eighty".