40455706 has 8 divisors (see below), whose sum is σ = 60936084. Its totient is φ = 20143680.

The previous prime is 40455703. The next prime is 40455719. The reversal of 40455706 is 60755404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36711481 + 3744225 = 6059^2 + 1935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40455703) 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, 41485 + ... + 42448.

Almost surely, 2^40455706 is an apocalyptic number.

40455706 is a deficient number, since it is larger than the sum of its proper divisors (20480378).

40455706 is a wasteful number, since it uses less digits than its factorization.

40455706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84176.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 40455706 is about 6360.4800133323. The cubic root of 40455706 is about 343.2890321030.

The spelling of 40455706 in words is "forty million, four hundred fifty-five thousand, seven hundred six".