40870869 has 8 divisors (see below), whose sum is σ = 58686432. Its totient is φ = 25151280.

The previous prime is 40870861. The next prime is 40870883. The reversal of 40870869 is 96807804.

It is a happy number.

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

It is not a de Polignac number, because 40870869 - 2³ = 40870861 is a prime.

It is a super-2 number, since 2×40870869² = 3340855865630322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40870869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40870861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523947 + ... + 524024.

It is an arithmetic number, because the mean of its divisors is an integer number (7335804).

Almost surely, 2^40870869 is an apocalyptic number.

It is an amenable number.

40870869 is a deficient number, since it is larger than the sum of its proper divisors (17815563).

40870869 is a wasteful number, since it uses less digits than its factorization.

40870869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047987.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 40870869 is about 6393.0328483436. The cubic root of 40870869 is about 344.4593337727.

The spelling of 40870869 in words is "forty million, eight hundred seventy thousand, eight hundred sixty-nine".