126891426 has 16 divisors (see below), whose sum is σ = 260642304. Its totient is φ = 41153904.

The previous prime is 126891397. The next prime is 126891431. The reversal of 126891426 is 624198621.

It is a super-2 number, since 2×126891426² = 32202867984626952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285570 + ... + 286013.

It is an arithmetic number, because the mean of its divisors is an integer number (16290144).

Almost surely, 2^126891426 is an apocalyptic number.

126891426 is an abundant number, since it is smaller than the sum of its proper divisors (133750878).

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

126891426 is a wasteful number, since it uses less digits than its factorization.

126891426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571625.

The product of its digits is 41472, while the sum is 39.

The square root of 126891426 is about 11264.6094472911. The cubic root of 126891426 is about 502.5092872222.

The spelling of 126891426 in words is "one hundred twenty-six million, eight hundred ninety-one thousand, four hundred twenty-six".