40301989 has 8 divisors (see below), whose sum is σ = 49602560. Its totient is φ = 31887216.

The previous prime is 40301981. The next prime is 40301993. The reversal of 40301989 is 98910304.

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 40301989 - 2³ = 40301981 is a prime.

It is a super-2 number, since 2×40301989² = 3248500634712242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40301981) 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, 221349 + ... + 221530.

It is an arithmetic number, because the mean of its divisors is an integer number (6200320).

Almost surely, 2^40301989 is an apocalyptic number.

It is an amenable number.

40301989 is a deficient number, since it is larger than the sum of its proper divisors (9300571).

40301989 is a wasteful number, since it uses less digits than its factorization.

40301989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442899.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 40301989 is about 6348.3847551956. The cubic root of 40301989 is about 342.8536890112.

The spelling of 40301989 in words is "forty million, three hundred one thousand, nine hundred eighty-nine".