31411242 has 24 divisors (see below), whose sum is σ = 69642144. Its totient is φ = 10226664.

The previous prime is 31411229. The next prime is 31411253. The reversal of 31411242 is 24211413.

It is a super-2 number, since 2×31411242² = 1973332247965128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19518 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (2901756).

Almost surely, 2^31411242 is an apocalyptic number.

31411242 is an abundant number, since it is smaller than the sum of its proper divisors (38230902).

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

31411242 is a wasteful number, since it uses less digits than its factorization.

31411242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40634 (or 40631 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 31411242 is about 5604.5733111451. The cubic root of 31411242 is about 315.5210725634.

Adding to 31411242 its reverse (24211413), we get a palindrome (55622655).

The spelling of 31411242 in words is "thirty-one million, four hundred eleven thousand, two hundred forty-two".