31406226 has 16 divisors (see below), whose sum is σ = 62889024. Its totient is φ = 10455984.

The previous prime is 31406197. The next prime is 31406233. The reversal of 31406226 is 62260413.

It is a super-3 number, since 3×31406226³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31406196 and 31406205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3096 + ... + 8508.

It is an arithmetic number, because the mean of its divisors is an integer number (3930564).

Almost surely, 2^31406226 is an apocalyptic number.

31406226 is an abundant number, since it is smaller than the sum of its proper divisors (31482798).

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

31406226 is a wasteful number, since it uses less digits than its factorization.

31406226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 31406226 is about 5604.1258015858. The cubic root of 31406226 is about 315.5042766877.

Adding to 31406226 its reverse (62260413), we get a palindrome (93666639).

The spelling of 31406226 in words is "thirty-one million, four hundred six thousand, two hundred twenty-six".