40884457 has 4 divisors (see below), whose sum is σ = 41554756. Its totient is φ = 40214160.

The previous prime is 40884419. The next prime is 40884469. The reversal of 40884457 is 75448804.

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 12752041 + 28132416 = 3571^2 + 5304^2 .

It is a cyclic number.

It is not a de Polignac number, because 40884457 - 2⁷ = 40884329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40885457) 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, 335058 + ... + 335179.

It is an arithmetic number, because the mean of its divisors is an integer number (10388689).

Almost surely, 2^40884457 is an apocalyptic number.

It is an amenable number.

40884457 is a deficient number, since it is larger than the sum of its proper divisors (670299).

40884457 is an equidigital number, since it uses as much as digits as its factorization.

40884457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670298.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 40884457 is about 6394.0954794247. The cubic root of 40884457 is about 344.4975027256.

The spelling of 40884457 in words is "forty million, eight hundred eighty-four thousand, four hundred fifty-seven".