126405696 has 56 divisors (see below), whose sum is σ = 335324704. Its totient is φ = 42024960.

The previous prime is 126405691. The next prime is 126405749. The reversal of 126405696 is 696504621.

It is not an unprimeable number, because it can be changed into a prime (126405691) 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, 109056 + ... + 110208.

Almost surely, 2^126405696 is an apocalyptic number.

126405696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126405696 is an abundant number, since it is smaller than the sum of its proper divisors (208919008).

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

126405696 is a wasteful number, since it uses less digits than its factorization.

126405696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 126405696 is about 11243.0287734222. The cubic root of 126405696 is about 501.8672791893.

It can be divided in two parts, 12640 and 5696, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 126405696 in words is "one hundred twenty-six million, four hundred five thousand, six hundred ninety-six".