126290380 has 24 divisors (see below), whose sum is σ = 265925520. Its totient is φ = 50379840.

The previous prime is 126290369. The next prime is 126290383. The reversal of 126290380 is 83092621.

It is not an unprimeable number, because it can be changed into a prime (126290383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751 + ... + 15910.

It is an arithmetic number, because the mean of its divisors is an integer number (11080230).

Almost surely, 2^126290380 is an apocalyptic number.

126290380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126290380 is an abundant number, since it is smaller than the sum of its proper divisors (139635140).

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

126290380 is a wasteful number, since it uses less digits than its factorization.

126290380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17049 (or 17047 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 126290380 is about 11237.8992698814. The cubic root of 126290380 is about 501.7146201014.

The spelling of 126290380 in words is "one hundred twenty-six million, two hundred ninety thousand, three hundred eighty".