42989361 has 8 divisors (see below), whose sum is σ = 58717344. Its totient is φ = 27960480.

The previous prime is 42989357. The next prime is 42989363. The reversal of 42989361 is 16398924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42989361 - 2² = 42989357 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42989363) 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, 174631 + ... + 174876.

It is an arithmetic number, because the mean of its divisors is an integer number (7339668).

Almost surely, 2^42989361 is an apocalyptic number.

42989361 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42989361 is a deficient number, since it is larger than the sum of its proper divisors (15727983).

42989361 is a wasteful number, since it uses less digits than its factorization.

42989361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349551.

The product of its digits is 93312, while the sum is 42.

The square root of 42989361 is about 6556.6272579734. The cubic root of 42989361 is about 350.3109101268.

The spelling of 42989361 in words is "forty-two million, nine hundred eighty-nine thousand, three hundred sixty-one".