40403869 has 8 divisors (see below), whose sum is σ = 44219808. Its totient is φ = 36611760.

The previous prime is 40403851. The next prime is 40403897. The reversal of 40403869 is 96830404.

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

It is a cyclic number.

It is not a de Polignac number, because 40403869 - 2⁵ = 40403837 is a prime.

It is a super-2 number, since 2×40403869² = 3264945260338322, 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 (40403369) 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, 2307 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (5527476).

Almost surely, 2^40403869 is an apocalyptic number.

It is an amenable number.

40403869 is a deficient number, since it is larger than the sum of its proper divisors (3815939).

40403869 is a wasteful number, since it uses less digits than its factorization.

40403869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40403869 is about 6356.4037788674. The cubic root of 40403869 is about 343.1423475668.

The spelling of 40403869 in words is "forty million, four hundred three thousand, eight hundred sixty-nine".