40627745 has 4 divisors (see below), whose sum is σ = 48753300. Its totient is φ = 32502192.

The previous prime is 40627723. The next prime is 40627751. The reversal of 40627745 is 54772604.

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 11478544 + 29149201 = 3388^2 + 5399^2 .

It is a cyclic number.

It is not a de Polignac number, because 40627745 - 2¹⁶ = 40562209 is a prime.

It is a super-2 number, since 2×40627745² = 3301227327570050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4062770 + ... + 4062779.

It is an arithmetic number, because the mean of its divisors is an integer number (12188325).

Almost surely, 2^40627745 is an apocalyptic number.

It is an amenable number.

40627745 is a deficient number, since it is larger than the sum of its proper divisors (8125555).

40627745 is an equidigital number, since it uses as much as digits as its factorization.

40627745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125554.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 40627745 is about 6373.9897238700. The cubic root of 40627745 is about 343.7749592896.

The spelling of 40627745 in words is "forty million, six hundred twenty-seven thousand, seven hundred forty-five".