126272730 has 32 divisors (see below), whose sum is σ = 303507648. Its totient is φ = 33622400.

The previous prime is 126272723. The next prime is 126272761. The reversal of 126272730 is 37272621.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 20065 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (9484614).

Almost surely, 2^126272730 is an apocalyptic number.

126272730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126272730 is an abundant number, since it is smaller than the sum of its proper divisors (177234918).

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

126272730 is a wasteful number, since it uses less digits than its factorization.

126272730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 126272730 is about 11237.1139533245. The cubic root of 126272730 is about 501.6912462555.

The spelling of 126272730 in words is "one hundred twenty-six million, two hundred seventy-two thousand, seven hundred thirty".