123367842 has 48 divisors (see below), whose sum is σ = 295659000. Its totient is φ = 36930816.

The previous prime is 123367831. The next prime is 123367843. The reversal of 123367842 is 248763321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116445681 + 6922161 = 10791^2 + 2631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123367797 and 123367806.

It is not an unprimeable number, because it can be changed into a prime (123367843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1534 + ... + 15782.

Almost surely, 2^123367842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123367842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147829500).

123367842 is an abundant number, since it is smaller than the sum of its proper divisors (172291158).

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

123367842 is a wasteful number, since it uses less digits than its factorization.

123367842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14307 (or 14304 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 123367842 is about 11107.1077243358. The cubic root of 123367842 is about 497.8142482350.

The spelling of 123367842 in words is "one hundred twenty-three million, three hundred sixty-seven thousand, eight hundred forty-two".