40607653 has 4 divisors (see below), whose sum is σ = 40646988. Its totient is φ = 40568320.

The previous prime is 40607641. The next prime is 40607657. The reversal of 40607653 is 35670604.

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 32069569 + 8538084 = 5663^2 + 2922^2 .

It is a cyclic number.

It is not a de Polignac number, because 40607653 - 2⁵ = 40607621 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40607657) 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, 18076 + ... + 20197.

It is an arithmetic number, because the mean of its divisors is an integer number (10161747).

Almost surely, 2^40607653 is an apocalyptic number.

It is an amenable number.

40607653 is a deficient number, since it is larger than the sum of its proper divisors (39335).

40607653 is a wasteful number, since it uses less digits than its factorization.

40607653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39334.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 40607653 is about 6372.4134360539. The cubic root of 40607653 is about 343.7182799160.

The spelling of 40607653 in words is "forty million, six hundred seven thousand, six hundred fifty-three".