40220031 has 8 divisors (see below), whose sum is σ = 55958400. Its totient is φ = 25647512.

The previous prime is 40220027. The next prime is 40220039. The reversal of 40220031 is 13002204.

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 40220031 - 2² = 40220027 is a prime.

It is a super-2 number, since 2×40220031² = 3235301787281922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40219989 and 40220016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291381 + ... + 291518.

It is an arithmetic number, because the mean of its divisors is an integer number (6994800).

Almost surely, 2^40220031 is an apocalyptic number.

40220031 is a deficient number, since it is larger than the sum of its proper divisors (15738369).

40220031 is a wasteful number, since it uses less digits than its factorization.

40220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582925.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40220031 is about 6341.9264423360. The cubic root of 40220031 is about 342.6211225577.

Adding to 40220031 its reverse (13002204), we get a palindrome (53222235).

The spelling of 40220031 in words is "forty million, two hundred twenty thousand, thirty-one".