40211057 has 4 divisors (see below), whose sum is σ = 40224756. Its totient is φ = 40197360.

The previous prime is 40211053. The next prime is 40211071. The reversal of 40211057 is 75011204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32615521 + 7595536 = 5711^2 + 2756^2 .

It is a cyclic number.

It is not a de Polignac number, because 40211057 - 2² = 40211053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40211053) 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, 458 + ... + 8979.

It is an arithmetic number, because the mean of its divisors is an integer number (10056189).

Almost surely, 2^40211057 is an apocalyptic number.

It is an amenable number.

40211057 is a deficient number, since it is larger than the sum of its proper divisors (13699).

40211057 is an equidigital number, since it uses as much as digits as its factorization.

40211057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13698.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 40211057 is about 6341.2188891411. The cubic root of 40211057 is about 342.5956384844.

The spelling of 40211057 in words is "forty million, two hundred eleven thousand, fifty-seven".