289354420 has 24 divisors (see below), whose sum is σ = 639626400. Its totient is φ = 109649952.

The previous prime is 289354409. The next prime is 289354427. The reversal of 289354420 is 24453982.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 289354420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289354427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380350 + ... + 381109.

It is an arithmetic number, because the mean of its divisors is an integer number (26651100).

Almost surely, 2^289354420 is an apocalyptic number.

289354420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289354420 is an abundant number, since it is smaller than the sum of its proper divisors (350271980).

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

289354420 is a wasteful number, since it uses less digits than its factorization.

289354420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761487 (or 761485 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 289354420 is about 17010.4209236574. The cubic root of 289354420 is about 661.4190617879.

The spelling of 289354420 in words is "two hundred eighty-nine million, three hundred fifty-four thousand, four hundred twenty".