31041450 has 72 divisors (see below), whose sum is σ = 90994176. Its totient is φ = 7524000.

The previous prime is 31041431. The next prime is 31041457. The reversal of 31041450 is 5414013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31041457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1815 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (1263808).

Almost surely, 2^31041450 is an apocalyptic number.

31041450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31041450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45497088).

31041450 is an abundant number, since it is smaller than the sum of its proper divisors (59952726).

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

31041450 is a wasteful number, since it uses less digits than its factorization.

31041450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300 (or 6292 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 31041450 is about 5571.4854392702. The cubic root of 31041450 is about 314.2780138806.

Adding to 31041450 its reverse (5414013), we get a palindrome (36455463).

It can be divided in two parts, 3104 and 1450, that added together give a palindrome (4554).

The spelling of 31041450 in words is "thirty-one million, forty-one thousand, four hundred fifty".