40410989 has 4 divisors (see below), whose sum is σ = 42788124. Its totient is φ = 38033856.

The previous prime is 40410961. The next prime is 40411001. The reversal of 40410989 is 98901404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30614089 + 9796900 = 5533^2 + 3130^2 .

It is a cyclic number.

It is not a de Polignac number, because 40410989 - 2¹⁶ = 40345453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40410959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188542 + ... + 1188575.

It is an arithmetic number, because the mean of its divisors is an integer number (10697031).

Almost surely, 2^40410989 is an apocalyptic number.

It is an amenable number.

40410989 is a deficient number, since it is larger than the sum of its proper divisors (2377135).

40410989 is a wasteful number, since it uses less digits than its factorization.

40410989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377134.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 40410989 is about 6356.9638193087. The cubic root of 40410989 is about 343.1625026499.

The spelling of 40410989 in words is "forty million, four hundred ten thousand, nine hundred eighty-nine".