31014450 has 72 divisors (see below), whose sum is σ = 85408596. Its totient is φ = 8068800.

The previous prime is 31014449. The next prime is 31014457. The reversal of 31014450 is 5441013.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9753129 + 21261321 = 3123^2 + 4611^2 .

It is a super-2 number, since 2×31014450² = 1923792217605000, which contains 22 as substring.

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 (31014457) 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, 756430 + ... + 756470.

Almost surely, 2^31014450 is an apocalyptic number.

31014450 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 31014450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42704298).

31014450 is an abundant number, since it is smaller than the sum of its proper divisors (54394146).

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

31014450 is an equidigital number, since it uses as much as digits as its factorization.

31014450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 51 counting only the distinct ones).

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

The square root of 31014450 is about 5569.0618599545. The cubic root of 31014450 is about 314.1868672814.

Adding to 31014450 its reverse (5441013), we get a palindrome (36455463).

The spelling of 31014450 in words is "thirty-one million, fourteen thousand, four hundred fifty".