40946889 has 4 divisors (see below), whose sum is σ = 54595856. Its totient is φ = 27297924.

The previous prime is 40946861. The next prime is 40946891. The reversal of 40946889 is 98864904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40946889 - 2⁹ = 40946377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40946989) 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, 6824479 + ... + 6824484.

It is an arithmetic number, because the mean of its divisors is an integer number (13648964).

Almost surely, 2^40946889 is an apocalyptic number.

It is an amenable number.

40946889 is a deficient number, since it is larger than the sum of its proper divisors (13648967).

40946889 is a wasteful number, since it uses less digits than its factorization.

40946889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648966.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 40946889 is about 6398.9756211444. The cubic root of 40946889 is about 344.6727668014.

The spelling of 40946889 in words is "forty million, nine hundred forty-six thousand, eight hundred eighty-nine".