42303989 has 8 divisors (see below), whose sum is σ = 52066560. Its totient is φ = 33471216.

The previous prime is 42303983. The next prime is 42303991. The reversal of 42303989 is 98930324.

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

It is a cyclic number.

It is not a de Polignac number, because 42303989 - 2¹⁶ = 42238453 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42303983) 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, 232349 + ... + 232530.

It is an arithmetic number, because the mean of its divisors is an integer number (6508320).

Almost surely, 2^42303989 is an apocalyptic number.

It is an amenable number.

42303989 is a deficient number, since it is larger than the sum of its proper divisors (9762571).

42303989 is a wasteful number, since it uses less digits than its factorization.

42303989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464899.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 42303989 is about 6504.1516741232. The cubic root of 42303989 is about 348.4392793477.

The spelling of 42303989 in words is "forty-two million, three hundred three thousand, nine hundred eighty-nine".