289070340 has 48 divisors (see below), whose sum is σ = 871660608. Its totient is φ = 71155584.

The previous prime is 289070339. The next prime is 289070357. The reversal of 289070340 is 43070982.

It is a super-2 number, since 2×289070340² = 167123322935431200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 184522 + ... + 186081.

It is an arithmetic number, because the mean of its divisors is an integer number (18159596).

Almost surely, 2^289070340 is an apocalyptic number.

289070340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289070340 is an abundant number, since it is smaller than the sum of its proper divisors (582590268).

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

289070340 is a wasteful number, since it uses less digits than its factorization.

289070340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370628 (or 370626 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 289070340 is about 17002.0686976615. The cubic root of 289070340 is about 661.2025367262.

The spelling of 289070340 in words is "two hundred eighty-nine million, seventy thousand, three hundred forty".