126644140 has 24 divisors (see below), whose sum is σ = 303946272. Its totient is φ = 43420800.

The previous prime is 126644129. The next prime is 126644173. The reversal of 126644140 is 41446621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 126644099 and 126644108.

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, 452161 + ... + 452440.

It is an arithmetic number, because the mean of its divisors is an integer number (12664428).

Almost surely, 2^126644140 is an apocalyptic number.

126644140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126644140 is an abundant number, since it is smaller than the sum of its proper divisors (177302132).

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

126644140 is a wasteful number, since it uses less digits than its factorization.

126644140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904617 (or 904615 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 126644140 is about 11253.6278594949. The cubic root of 126644140 is about 502.1826449249.

The spelling of 126644140 in words is "one hundred twenty-six million, six hundred forty-four thousand, one hundred forty".