123673438 has 16 divisors (see below), whose sum is σ = 221230080. Its totient is φ = 50698296.

The previous prime is 123673411. The next prime is 123673447. The reversal of 123673438 is 834376321.

It is a junction number, because it is equal to n+sod(n) for n = 123673397 and 123673406.

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, 191718 + ... + 192361.

It is an arithmetic number, because the mean of its divisors is an integer number (13826880).

Almost surely, 2^123673438 is an apocalyptic number.

123673438 is a deficient number, since it is larger than the sum of its proper divisors (97556642).

123673438 is a wasteful number, since it uses less digits than its factorization.

123673438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384111.

The product of its digits is 72576, while the sum is 37.

The square root of 123673438 is about 11120.8559922337. The cubic root of 123673438 is about 498.2249565653.

The spelling of 123673438 in words is "one hundred twenty-three million, six hundred seventy-three thousand, four hundred thirty-eight".