126005440 has 56 divisors (see below), whose sum is σ = 327336912. Its totient is φ = 45818880.

The previous prime is 126005401. The next prime is 126005459. The reversal of 126005440 is 44500621.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 14379 + ... + 21418.

It is an arithmetic number, because the mean of its divisors is an integer number (5845302).

Almost surely, 2^126005440 is an apocalyptic number.

126005440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126005440 is an abundant number, since it is smaller than the sum of its proper divisors (201331472).

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

126005440 is a wasteful number, since it uses less digits than its factorization.

126005440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35825 (or 35815 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 126005440 is about 11225.2144745657. The cubic root of 126005440 is about 501.3370082976.

The spelling of 126005440 in words is "one hundred twenty-six million, five thousand, four hundred forty".