126278670 has 64 divisors (see below), whose sum is σ = 347558400. Its totient is φ = 28764288.

The previous prime is 126278641. The next prime is 126278687. The reversal of 126278670 is 76872621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72429 + ... + 74151.

It is an arithmetic number, because the mean of its divisors is an integer number (5430600).

Almost surely, 2^126278670 is an apocalyptic number.

126278670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126278670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173779200).

126278670 is an abundant number, since it is smaller than the sum of its proper divisors (221279730).

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

126278670 is a wasteful number, since it uses less digits than its factorization.

126278670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 126278670 is about 11237.3782529556. The cubic root of 126278670 is about 501.6991128241.

The spelling of 126278670 in words is "one hundred twenty-six million, two hundred seventy-eight thousand, six hundred seventy".