31420022 has 8 divisors (see below), whose sum is σ = 48279672. Its totient is φ = 15326800.

The previous prime is 31420009. The next prime is 31420027. The reversal of 31420022 is 22002413.

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

It is a super-3 number, since 3×31420022³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31419979 and 31420006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191504 + ... + 191667.

It is an arithmetic number, because the mean of its divisors is an integer number (6034959).

Almost surely, 2^31420022 is an apocalyptic number.

31420022 is a deficient number, since it is larger than the sum of its proper divisors (16859650).

31420022 is a wasteful number, since it uses less digits than its factorization.

31420022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383214.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 31420022 is about 5605.3565453056. The cubic root of 31420022 is about 315.5504677392.

Adding to 31420022 its reverse (22002413), we get a palindrome (53422435).

The spelling of 31420022 in words is "thirty-one million, four hundred twenty thousand, twenty-two".