126309798 has 12 divisors (see below), whose sum is σ = 273671268. Its totient is φ = 42103260.

The previous prime is 126309769. The next prime is 126309803. The reversal of 126309798 is 897903621.

126309798 is a `hidden beast` number, since 1 + 2 + 630 + 9 + 7 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3508588 + ... + 3508623.

It is an arithmetic number, because the mean of its divisors is an integer number (22805939).

Almost surely, 2^126309798 is an apocalyptic number.

126309798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

126309798 is an abundant number, since it is smaller than the sum of its proper divisors (147361470).

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

126309798 is a wasteful number, since it uses less digits than its factorization.

126309798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017219 (or 7017216 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 126309798 is about 11238.7631881805. The cubic root of 126309798 is about 501.7403327888.

The spelling of 126309798 in words is "one hundred twenty-six million, three hundred nine thousand, seven hundred ninety-eight".