126403868 has 24 divisors (see below), whose sum is σ = 227126592. Its totient is φ = 61525184.

The previous prime is 126403867. The next prime is 126403897. The reversal of 126403868 is 868304621.

It is a happy number.

It is a super-2 number, since 2×126403868² = 31955875690722848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126403867) 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, 35330 + ... + 38742.

It is an arithmetic number, because the mean of its divisors is an integer number (9463608).

Almost surely, 2^126403868 is an apocalyptic number.

It is an amenable number.

126403868 is a deficient number, since it is larger than the sum of its proper divisors (100722724).

126403868 is a wasteful number, since it uses less digits than its factorization.

126403868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661 (or 3659 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 126403868 is about 11242.9474783083. The cubic root of 126403868 is about 501.8648599475.

The spelling of 126403868 in words is "one hundred twenty-six million, four hundred three thousand, eight hundred sixty-eight".