126156440 has 16 divisors (see below), whose sum is σ = 283852080. Its totient is φ = 50462560.

The previous prime is 126156397. The next prime is 126156451. The reversal of 126156440 is 44651621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576916 + ... + 1576995.

It is an arithmetic number, because the mean of its divisors is an integer number (17740755).

Almost surely, 2^126156440 is an apocalyptic number.

126156440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126156440 is an abundant number, since it is smaller than the sum of its proper divisors (157695640).

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

126156440 is a wasteful number, since it uses less digits than its factorization.

126156440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153922 (or 3153918 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 126156440 is about 11231.9383901444. The cubic root of 126156440 is about 501.5371892553.

The spelling of 126156440 in words is "one hundred twenty-six million, one hundred fifty-six thousand, four hundred forty".