123474490 has 16 divisors (see below), whose sum is σ = 222487848. Its totient is φ = 49337856.

The previous prime is 123474473. The next prime is 123474503. The reversal of 123474490 is 94474321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122832889 + 641601 = 11083^2 + 801^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4354 + ... + 16306.

Almost surely, 2^123474490 is an apocalyptic number.

123474490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123474490 is a deficient number, since it is larger than the sum of its proper divisors (99013358).

123474490 is a wasteful number, since it uses less digits than its factorization.

123474490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 123474490 is about 11111.9075770094. The cubic root of 123474490 is about 497.9576556847.

The spelling of 123474490 in words is "one hundred twenty-three million, four hundred seventy-four thousand, four hundred ninety".