40707869 has 4 divisors (see below), whose sum is σ = 41475996. Its totient is φ = 39939744.

The previous prime is 40707853. The next prime is 40707913. The reversal of 40707869 is 96870704.

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 33790969 + 6916900 = 5813^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 40707869 - 2⁴ = 40707853 is a prime.

It is a super-2 number, since 2×40707869² = 3314261197042322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40707839) 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, 383984 + ... + 384089.

It is an arithmetic number, because the mean of its divisors is an integer number (10368999).

Almost surely, 2^40707869 is an apocalyptic number.

It is an amenable number.

40707869 is a deficient number, since it is larger than the sum of its proper divisors (768127).

40707869 is an equidigital number, since it uses as much as digits as its factorization.

40707869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768126.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 40707869 is about 6380.2718594116. The cubic root of 40707869 is about 344.0008027969. Note that the first 3 decimals are identical.

The spelling of 40707869 in words is "forty million, seven hundred seven thousand, eight hundred sixty-nine".