123423284 has 12 divisors (see below), whose sum is σ = 221259108. Its totient is φ = 60206400.

The previous prime is 123423283. The next prime is 123423319. The reversal of 123423284 is 482324321.

It can be written as a sum of positive squares in 2 ways, for example, as 65966884 + 57456400 = 8122^2 + 7580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123423283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376127 + ... + 376454.

It is an arithmetic number, because the mean of its divisors is an integer number (18438259).

Almost surely, 2^123423284 is an apocalyptic number.

It is an amenable number.

123423284 is a deficient number, since it is larger than the sum of its proper divisors (97835824).

123423284 is a wasteful number, since it uses less digits than its factorization.

123423284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752626 (or 752624 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 123423284 is about 11109.6032332393. The cubic root of 123423284 is about 497.8888103026. Note that the first 4 decimals are identical.

The spelling of 123423284 in words is "one hundred twenty-three million, four hundred twenty-three thousand, two hundred eighty-four".