126823642 has 32 divisors (see below), whose sum is σ = 214228800. Its totient is φ = 55802880.

The previous prime is 126823639. The next prime is 126823649. The reversal of 126823642 is 246328621.

It is a junction number, because it is equal to n+sod(n) for n = 126823598 and 126823607.

It is not an unprimeable number, because it can be changed into a prime (126823649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282234 + ... + 282682.

It is an arithmetic number, because the mean of its divisors is an integer number (6694650).

Almost surely, 2^126823642 is an apocalyptic number.

126823642 is a deficient number, since it is larger than the sum of its proper divisors (87405158).

126823642 is a wasteful number, since it uses less digits than its factorization.

126823642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its digits is 27648, while the sum is 34.

The square root of 126823642 is about 11261.6003303261. The cubic root of 126823642 is about 502.4197929787.

The spelling of 126823642 in words is "one hundred twenty-six million, eight hundred twenty-three thousand, six hundred forty-two".