40711457 has 4 divisors (see below), whose sum is σ = 40752660. Its totient is φ = 40670256.

The previous prime is 40711453. The next prime is 40711469. The reversal of 40711457 is 75411704.

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 274576 + 40436881 = 524^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 40711457 - 2² = 40711453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40711453) 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, 19082 + ... + 21107.

It is an arithmetic number, because the mean of its divisors is an integer number (10188165).

Almost surely, 2^40711457 is an apocalyptic number.

It is an amenable number.

40711457 is a deficient number, since it is larger than the sum of its proper divisors (41203).

40711457 is a wasteful number, since it uses less digits than its factorization.

40711457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41202.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 40711457 is about 6380.5530324573. The cubic root of 40711457 is about 344.0109092673.

The spelling of 40711457 in words is "forty million, seven hundred eleven thousand, four hundred fifty-seven".