40989771 has 12 divisors (see below), whose sum is σ = 62690472. Its totient is φ = 25718976.

The previous prime is 40989763. The next prime is 40989779. The reversal of 40989771 is 17798904.

40989771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40989763) and next prime (40989779).

It is not a de Polignac number, because 40989771 - 2³ = 40989763 is a prime.

It is a super-2 number, since 2×40989771² = 3360322653264882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40989779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133801 + ... + 134106.

It is an arithmetic number, because the mean of its divisors is an integer number (5224206).

Almost surely, 2^40989771 is an apocalyptic number.

40989771 is a deficient number, since it is larger than the sum of its proper divisors (21700701).

40989771 is a wasteful number, since it uses less digits than its factorization.

40989771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267930 (or 267927 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 40989771 is about 6402.3254369018. The cubic root of 40989771 is about 344.7930453815.

The spelling of 40989771 in words is "forty million, nine hundred eighty-nine thousand, seven hundred seventy-one".