126289320 has 64 divisors (see below), whose sum is σ = 395349120. Its totient is φ = 32212224.

The previous prime is 126289291. The next prime is 126289349. The reversal of 126289320 is 23982621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126289291) and next prime (126289349).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20119 + ... + 25638.

It is an arithmetic number, because the mean of its divisors is an integer number (6177330).

Almost surely, 2^126289320 is an apocalyptic number.

126289320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126289320 is an abundant number, since it is smaller than the sum of its proper divisors (269059800).

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

126289320 is a wasteful number, since it uses less digits than its factorization.

126289320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45794 (or 45790 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 126289320 is about 11237.8521079430. The cubic root of 126289320 is about 501.7132164078.

The spelling of 126289320 in words is "one hundred twenty-six million, two hundred eighty-nine thousand, three hundred twenty".