31484230 has 16 divisors (see below), whose sum is σ = 56753424. Its totient is φ = 12575520.

The previous prime is 31484209. The next prime is 31484237. The reversal of 31484230 is 3248413.

It is a junction number, because it is equal to n+sod(n) for n = 31484195 and 31484204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31484237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6685 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (3547089).

Almost surely, 2^31484230 is an apocalyptic number.

31484230 is a deficient number, since it is larger than the sum of its proper divisors (25269194).

31484230 is a wasteful number, since it uses less digits than its factorization.

31484230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 31484230 is about 5611.0810010193. The cubic root of 31484230 is about 315.7652679156.

The spelling of 31484230 in words is "thirty-one million, four hundred eighty-four thousand, two hundred thirty".