247120330 has 32 divisors (see below), whose sum is σ = 477458064. Its totient is φ = 91754496.

The previous prime is 247120319. The next prime is 247120439. The reversal of 247120330 is 33021742.

It can be written as a sum of positive squares in 8 ways, for example, as 73908409 + 173211921 = 8597^2 + 13161^2 .

It is a super-2 number, since 2×247120330² = 122136914998617800, which contains 22 as substring.

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, 2454 + ... + 22366.

Almost surely, 2^247120330 is an apocalyptic number.

247120330 is a deficient number, since it is larger than the sum of its proper divisors (230337734).

247120330 is a wasteful number, since it uses less digits than its factorization.

247120330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 247120330 is about 15720.0613866486. The cubic root of 247120330 is about 627.5324068066.

It can be divided in two parts, 2471 and 20330, that added together give a square (22801 = 151²).

The spelling of 247120330 in words is "two hundred forty-seven million, one hundred twenty thousand, three hundred thirty".