123064440 has 32 divisors (see below), whose sum is σ = 369193680. Its totient is φ = 32817152.

The previous prime is 123064439. The next prime is 123064453. The reversal of 123064440 is 44460321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 123064440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512649 + ... + 512888.

Almost surely, 2^123064440 is an apocalyptic number.

123064440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123064440 is an abundant number, since it is smaller than the sum of its proper divisors (246129240).

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

123064440 is a wasteful number, since it uses less digits than its factorization.

123064440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025551 (or 1025547 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 123064440 is about 11093.4413055643. The cubic root of 123064440 is about 497.4058170406.

The spelling of 123064440 in words is "one hundred twenty-three million, sixty-four thousand, four hundred forty".