31025434 has 8 divisors (see below), whose sum is σ = 50768928. Its totient is φ = 14102460.

The previous prime is 31025429. The next prime is 31025441. The reversal of 31025434 is 43452013.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1410247 = 31025434 / (3 + 1 + 0 + 2 + 5 + 4 + 3 + 4).

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, 705102 + ... + 705145.

It is an arithmetic number, because the mean of its divisors is an integer number (6346116).

Almost surely, 2^31025434 is an apocalyptic number.

31025434 is a deficient number, since it is larger than the sum of its proper divisors (19743494).

31025434 is a wasteful number, since it uses less digits than its factorization.

31025434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410260.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 31025434 is about 5570.0479351618. The cubic root of 31025434 is about 314.2239534485.

Adding to 31025434 its reverse (43452013), we get a palindrome (74477447).

The spelling of 31025434 in words is "thirty-one million, twenty-five thousand, four hundred thirty-four".