31045402 has 8 divisors (see below), whose sum is σ = 46828800. Its totient is φ = 15435804.

The previous prime is 31045351. The next prime is 31045409. The reversal of 31045402 is 20454013.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31045402.

It is not an unprimeable number, because it can be changed into a prime (31045409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43002 + ... + 43717.

It is an arithmetic number, because the mean of its divisors is an integer number (5853600).

Almost surely, 2^31045402 is an apocalyptic number.

31045402 is a deficient number, since it is larger than the sum of its proper divisors (15783398).

31045402 is a wasteful number, since it uses less digits than its factorization.

31045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86900.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 31045402 is about 5571.8400910292. The cubic root of 31045402 is about 314.2913506073.

Adding to 31045402 its reverse (20454013), we get a palindrome (51499415).

The spelling of 31045402 in words is "thirty-one million, forty-five thousand, four hundred two".