126774720 has 280 divisors, whose sum is σ = 463960464. Its totient is φ = 32845824.

The previous prime is 126774673. The next prime is 126774721. The reversal of 126774720 is 27477621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126774721) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1736604 + ... + 1736676.

Almost surely, 2^126774720 is an apocalyptic number.

126774720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126774720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231980232).

126774720 is an abundant number, since it is smaller than the sum of its proper divisors (337185744).

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

126774720 is an equidigital number, since it uses as much as digits as its factorization.

126774720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 126774720 is about 11259.4280494171. The cubic root of 126774720 is about 502.3551821489.

The spelling of 126774720 in words is "one hundred twenty-six million, seven hundred seventy-four thousand, seven hundred twenty".