31441420 has 24 divisors (see below), whose sum is σ = 66282048. Its totient is φ = 12528000.

The previous prime is 31441411. The next prime is 31441433. The reversal of 31441420 is 2414413.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520 + ... + 8320.

It is an arithmetic number, because the mean of its divisors is an integer number (2761752).

Almost surely, 2^31441420 is an apocalyptic number.

It is an amenable number.

31441420 is an abundant number, since it is smaller than the sum of its proper divisors (34840628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31441420 is a wasteful number, since it uses less digits than its factorization.

31441420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 31441420 is about 5607.2649304273. The cubic root of 31441420 is about 315.6220846707.

Adding to 31441420 its reverse (2414413), we get a palindrome (33855833).

The spelling of 31441420 in words is "thirty-one million, four hundred forty-one thousand, four hundred twenty".