40092989 has 2 divisors, whose sum is σ = 40092990. Its totient is φ = 40092988.

The previous prime is 40092977. The next prime is 40093003. The reversal of 40092989 is 98929004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 1776889 = 6190^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 40092989 - 2²⁰ = 39044413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40092929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20046494 + 20046495.

It is an arithmetic number, because the mean of its divisors is an integer number (20046495).

Almost surely, 2^40092989 is an apocalyptic number.

It is an amenable number.

40092989 is a deficient number, since it is larger than the sum of its proper divisors (1).

40092989 is an equidigital number, since it uses as much as digits as its factorization.

40092989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 40092989 is about 6331.9024787184. The cubic root of 40092989 is about 342.2599991601.

The spelling of 40092989 in words is "forty million, ninety-two thousand, nine hundred eighty-nine".