123739394 has 16 divisors (see below), whose sum is σ = 191116800. Its totient is φ = 60049440.

The previous prime is 123739387. The next prime is 123739403. The reversal of 123739394 is 493937321.

It is a super-2 number, since 2×123739394² = 30622875254974472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 12527 + ... + 20109.

It is an arithmetic number, because the mean of its divisors is an integer number (11944800).

Almost surely, 2^123739394 is an apocalyptic number.

123739394 is a deficient number, since it is larger than the sum of its proper divisors (67377406).

123739394 is a wasteful number, since it uses less digits than its factorization.

123739394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825.

The product of its digits is 122472, while the sum is 41.

The square root of 123739394 is about 11123.8210161796. The cubic root of 123739394 is about 498.3135098980.

The spelling of 123739394 in words is "one hundred twenty-three million, seven hundred thirty-nine thousand, three hundred ninety-four".