31472030 has 8 divisors (see below), whose sum is σ = 56649672. Its totient is φ = 12588808.

The previous prime is 31472029. The next prime is 31472041. The reversal of 31472030 is 3027413.

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 = 31471993 and 31472011.

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, 1573592 + ... + 1573611.

It is an arithmetic number, because the mean of its divisors is an integer number (7081209).

Almost surely, 2^31472030 is an apocalyptic number.

31472030 is a deficient number, since it is larger than the sum of its proper divisors (25177642).

31472030 is a wasteful number, since it uses less digits than its factorization.

31472030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147210.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 31472030 is about 5609.9937611374. The cubic root of 31472030 is about 315.7244767643.

Adding to 31472030 its reverse (3027413), we get a palindrome (34499443).

The spelling of 31472030 in words is "thirty-one million, four hundred seventy-two thousand, thirty".