40516477 has 4 divisors (see below), whose sum is σ = 40561020. Its totient is φ = 40471936.

The previous prime is 40516403. The next prime is 40516481. The reversal of 40516477 is 77461504.

It is a happy number.

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 12859396 + 27657081 = 3586^2 + 5259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40516477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40516577) 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, 20878 + ... + 22735.

It is an arithmetic number, because the mean of its divisors is an integer number (10140255).

Almost surely, 2^40516477 is an apocalyptic number.

It is an amenable number.

40516477 is a deficient number, since it is larger than the sum of its proper divisors (44543).

40516477 is an equidigital number, since it uses as much as digits as its factorization.

40516477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 40516477 is about 6365.2554544181. The cubic root of 40516477 is about 343.4608379494.

The spelling of 40516477 in words is "forty million, five hundred sixteen thousand, four hundred seventy-seven".