126546440 has 32 divisors (see below), whose sum is σ = 287259480. Its totient is φ = 50168832.

The previous prime is 126546397. The next prime is 126546461. The reversal of 126546440 is 44645621.

It can be written as a sum of positive squares in 4 ways, for example, as 94984516 + 31561924 = 9746^2 + 5618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126546397 and 126546406.

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, 9479 + ... + 18518.

Almost surely, 2^126546440 is an apocalyptic number.

126546440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126546440 is an abundant number, since it is smaller than the sum of its proper divisors (160713040).

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

126546440 is a wasteful number, since it uses less digits than its factorization.

126546440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28121 (or 28117 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 126546440 is about 11249.2861995773. The cubic root of 126546440 is about 502.0534749360.

The spelling of 126546440 in words is "one hundred twenty-six million, five hundred forty-six thousand, four hundred forty".