123609460 has 24 divisors (see below), whose sum is σ = 279548136. Its totient is φ = 45640320.

The previous prime is 123609413. The next prime is 123609461. The reversal of 123609460 is 64906321.

It can be written as a sum of positive squares in 4 ways, for example, as 2917264 + 120692196 = 1708^2 + 10986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123609461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237451 + ... + 237970.

It is an arithmetic number, because the mean of its divisors is an integer number (11647839).

Almost surely, 2^123609460 is an apocalyptic number.

123609460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123609460 is an abundant number, since it is smaller than the sum of its proper divisors (155938676).

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

123609460 is a wasteful number, since it uses less digits than its factorization.

123609460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475443 (or 475441 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 123609460 is about 11117.9791329180. The cubic root of 123609460 is about 498.1390288325.

The spelling of 123609460 in words is "one hundred twenty-three million, six hundred nine thousand, four hundred sixty".