31480230 has 32 divisors (see below), whose sum is σ = 75957984. Its totient is φ = 8349696.

The previous prime is 31480201. The next prime is 31480259. The reversal of 31480230 is 3208413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31480201) and next prime (31480259).

It is a junction number, because it is equal to n+sod(n) for n = 31480197 and 31480206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3072 + ... + 8508.

It is an arithmetic number, because the mean of its divisors is an integer number (2373687).

Almost surely, 2^31480230 is an apocalyptic number.

31480230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31480230 is an abundant number, since it is smaller than the sum of its proper divisors (44477754).

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

31480230 is a wasteful number, since it uses less digits than its factorization.

31480230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 31480230 is about 5610.7245521412. The cubic root of 31480230 is about 315.7518949289.

Adding to 31480230 its reverse (3208413), we get a palindrome (34688643).

The spelling of 31480230 in words is "thirty-one million, four hundred eighty thousand, two hundred thirty".