123672340 has 24 divisors (see below), whose sum is σ = 283322592. Its totient is φ = 44971680.

The previous prime is 123672313. The next prime is 123672347. The reversal of 123672340 is 43276321.

It is a junction number, because it is equal to n+sod(n) for n = 123672299 and 123672308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123672347) 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, 280854 + ... + 281293.

It is an arithmetic number, because the mean of its divisors is an integer number (11805108).

Almost surely, 2^123672340 is an apocalyptic number.

123672340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123672340 is an abundant number, since it is smaller than the sum of its proper divisors (159650252).

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

123672340 is a wasteful number, since it uses less digits than its factorization.

123672340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562167 (or 562165 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 123672340 is about 11120.8066254207. The cubic root of 123672340 is about 498.2234821107.

The spelling of 123672340 in words is "one hundred twenty-three million, six hundred seventy-two thousand, three hundred forty".