126445320 has 256 divisors, whose sum is σ = 457228800. Its totient is φ = 30965760.

The previous prime is 126445313. The next prime is 126445331. The reversal of 126445320 is 23544621.

126445320 is a `hidden beast` number, since 12 + 644 + 5 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1303512 + ... + 1303608.

It is an arithmetic number, because the mean of its divisors is an integer number (1786050).

Almost surely, 2^126445320 is an apocalyptic number.

126445320 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 126445320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228614400).

126445320 is an abundant number, since it is smaller than the sum of its proper divisors (330783480).

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

126445320 is a wasteful number, since it uses less digits than its factorization.

126445320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 126445320 is about 11244.7907939632. The cubic root of 126445320 is about 501.9197133021.

Adding to 126445320 its reverse (23544621), we get a palindrome (149989941).

The spelling of 126445320 in words is "one hundred twenty-six million, four hundred forty-five thousand, three hundred twenty".