40745629 has 4 divisors (see below), whose sum is σ = 40914940. Its totient is φ = 40576320.

The previous prime is 40745597. The next prime is 40745641. The reversal of 40745629 is 92654704.

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 21622500 + 19123129 = 4650^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 40745629 - 2⁵ = 40745597 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 (40745669) 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, 84294 + ... + 84775.

It is an arithmetic number, because the mean of its divisors is an integer number (10228735).

Almost surely, 2^40745629 is an apocalyptic number.

It is an amenable number.

40745629 is a deficient number, since it is larger than the sum of its proper divisors (169311).

40745629 is a wasteful number, since it uses less digits than its factorization.

40745629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169310.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 40745629 is about 6383.2302950779. The cubic root of 40745629 is about 344.1071332307.

The spelling of 40745629 in words is "forty million, seven hundred forty-five thousand, six hundred twenty-nine".