31104430 has 16 divisors (see below), whose sum is σ = 63986400. Its totient is φ = 10664352.

The previous prime is 31104427. The next prime is 31104431. The reversal of 31104430 is 3440113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222105 + ... + 222244.

It is an arithmetic number, because the mean of its divisors is an integer number (3999150).

Almost surely, 2^31104430 is an apocalyptic number.

31104430 is an abundant number, since it is smaller than the sum of its proper divisors (32881970).

31104430 is a wasteful number, since it uses less digits than its factorization.

31104430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444363.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31104430 is about 5577.1345689341. The cubic root of 31104430 is about 314.4904165252.

Adding to 31104430 its reverse (3440113), we get a palindrome (34544543).

The spelling of 31104430 in words is "thirty-one million, one hundred four thousand, four hundred thirty".