123352040 has 32 divisors (see below), whose sum is σ = 317191680. Its totient is φ = 42292032.

The previous prime is 123352039. The next prime is 123352081. The reversal of 123352040 is 40253321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 219992 + ... + 220551.

It is an arithmetic number, because the mean of its divisors is an integer number (9912240).

Almost surely, 2^123352040 is an apocalyptic number.

123352040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123352040 is an abundant number, since it is smaller than the sum of its proper divisors (193839640).

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

123352040 is a wasteful number, since it uses less digits than its factorization.

123352040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440561 (or 440557 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 123352040 is about 11106.3963552540. The cubic root of 123352040 is about 497.7929925698.

The spelling of 123352040 in words is "one hundred twenty-three million, three hundred fifty-two thousand, forty".