126940788 has 36 divisors (see below), whose sum is σ = 345562308. Its totient is φ = 39058560.

The previous prime is 126940783. The next prime is 126940799. The reversal of 126940788 is 887049621.

It can be written as a sum of positive squares in 2 ways, for example, as 81216144 + 45724644 = 9012^2 + 6762^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×126940788² = 32227927316121888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126940783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135153 + ... + 136088.

It is an arithmetic number, because the mean of its divisors is an integer number (9598953).

Almost surely, 2^126940788 is an apocalyptic number.

126940788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

126940788 is an abundant number, since it is smaller than the sum of its proper divisors (218621520).

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

126940788 is a wasteful number, since it uses less digits than its factorization.

126940788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271264 (or 271259 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 126940788 is about 11266.8002556183. The cubic root of 126940788 is about 502.5744391096.

The spelling of 126940788 in words is "one hundred twenty-six million, nine hundred forty thousand, seven hundred eighty-eight".