40789389 has 8 divisors (see below), whose sum is σ = 54416320. Its totient is φ = 27177696.

The previous prime is 40789381. The next prime is 40789391. The reversal of 40789389 is 98398704.

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

It is not a de Polignac number, because 40789389 - 2³ = 40789381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40789381) 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, 6192 + ... + 10950.

It is an arithmetic number, because the mean of its divisors is an integer number (6802040).

Almost surely, 2^40789389 is an apocalyptic number.

It is an amenable number.

40789389 is a deficient number, since it is larger than the sum of its proper divisors (13626931).

40789389 is a wasteful number, since it uses less digits than its factorization.

40789389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 40789389 is about 6386.6571068126. The cubic root of 40789389 is about 344.2302772425.

The spelling of 40789389 in words is "forty million, seven hundred eighty-nine thousand, three hundred eighty-nine".