126440438 has 16 divisors (see below), whose sum is σ = 191938560. Its totient is φ = 62465256.

The previous prime is 126440437. The next prime is 126440449. The reversal of 126440438 is 834044621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126440437) 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, 71003 + ... + 72761.

It is an arithmetic number, because the mean of its divisors is an integer number (11996160).

Almost surely, 2^126440438 is an apocalyptic number.

126440438 is a deficient number, since it is larger than the sum of its proper divisors (65498122).

126440438 is a wasteful number, since it uses less digits than its factorization.

126440438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 126440438 is about 11244.5737135740. The cubic root of 126440438 is about 501.9132535834.

The spelling of 126440438 in words is "one hundred twenty-six million, four hundred forty thousand, four hundred thirty-eight".