40649283 has 18 divisors (see below), whose sum is σ = 61039524. Its totient is φ = 27033264.

The previous prime is 40649281. The next prime is 40649293. The reversal of 40649283 is 38294604.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

40649283 is a `hidden beast` number, since 4 + 0 + 649 + 2 + 8 + 3 = 666.

It is not a de Polignac number, because 40649283 - 2¹ = 40649281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40649281) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 99183 + ... + 99591.

Almost surely, 2^40649283 is an apocalyptic number.

40649283 is a deficient number, since it is larger than the sum of its proper divisors (20390241).

40649283 is an frugal number, since it uses more digits than its factorization.

40649283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 40649283 is about 6375.6790226610. The cubic root of 40649283 is about 343.8356970692.

The spelling of 40649283 in words is "forty million, six hundred forty-nine thousand, two hundred eighty-three".