31473230 has 8 divisors (see below), whose sum is σ = 56651832. Its totient is φ = 12589288.

The previous prime is 31473217. The next prime is 31473241. The reversal of 31473230 is 3237413.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31473196 and 31473205.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1573652 + ... + 1573671.

It is an arithmetic number, because the mean of its divisors is an integer number (7081479).

Almost surely, 2^31473230 is an apocalyptic number.

31473230 is a deficient number, since it is larger than the sum of its proper divisors (25178602).

31473230 is a wasteful number, since it uses less digits than its factorization.

31473230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147330.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 31473230 is about 5610.1007121085. The cubic root of 31473230 is about 315.7284894761.

The spelling of 31473230 in words is "thirty-one million, four hundred seventy-three thousand, two hundred thirty".