31422024 has 24 divisors (see below), whose sum is σ = 85101510. Its totient is φ = 10473984.

The previous prime is 31422019. The next prime is 31422037. The reversal of 31422024 is 42022413.

It can be written as a sum of positive squares in only one way, i.e., 26936100 + 4485924 = 5190^2 + 2118^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 31421988 and 31422006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218137 + ... + 218280.

Almost surely, 2^31422024 is an apocalyptic number.

It is an amenable number.

31422024 is an abundant number, since it is smaller than the sum of its proper divisors (53679486).

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

31422024 is a wasteful number, since it uses less digits than its factorization.

31422024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436429 (or 436422 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 31422024 is about 5605.5351216454. The cubic root of 31422024 is about 315.5571696083.

Adding to 31422024 its reverse (42022413), we get a palindrome (73444437).

The spelling of 31422024 in words is "thirty-one million, four hundred twenty-two thousand, twenty-four".