123345402 has 16 divisors (see below), whose sum is σ = 247298880. Its totient is φ = 41013792.

The previous prime is 123345401. The next prime is 123345419. The reversal of 123345402 is 204543321.

It is not an unprimeable number, because it can be changed into a prime (123345401) 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, 22678 + ... + 27585.

It is an arithmetic number, because the mean of its divisors is an integer number (15456180).

Almost surely, 2^123345402 is an apocalyptic number.

123345402 is an abundant number, since it is smaller than the sum of its proper divisors (123953478).

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

123345402 is a wasteful number, since it uses less digits than its factorization.

123345402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50677.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 123345402 is about 11106.0975144287. The cubic root of 123345402 is about 497.7840630887.

Adding to 123345402 its reverse (204543321), we get a palindrome (327888723).

The spelling of 123345402 in words is "one hundred twenty-three million, three hundred forty-five thousand, four hundred two".