123040298 has 16 divisors (see below), whose sum is σ = 187736640. Its totient is φ = 60470496.

The previous prime is 123040297. The next prime is 123040319. The reversal of 123040298 is 892040321.

It is a self number, because there is not a number n which added to its sum of digits gives 123040298.

It is not an unprimeable number, because it can be changed into a prime (123040297) 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, 26486 + ... + 30782.

It is an arithmetic number, because the mean of its divisors is an integer number (11733540).

Almost surely, 2^123040298 is an apocalyptic number.

123040298 is a deficient number, since it is larger than the sum of its proper divisors (64696342).

123040298 is a wasteful number, since it uses less digits than its factorization.

123040298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 123040298 is about 11092.3531317751. The cubic root of 123040298 is about 497.3732889424.

The spelling of 123040298 in words is "one hundred twenty-three million, forty thousand, two hundred ninety-eight".