31452080 has 80 divisors (see below), whose sum is σ = 80780544. Its totient is φ = 11293440.

The previous prime is 31452079. The next prime is 31452089. The reversal of 31452080 is 8025413.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (31452089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90467 + ... + 90813.

Almost surely, 2^31452080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31452080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40390272).

31452080 is an abundant number, since it is smaller than the sum of its proper divisors (49328464).

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

31452080 is a wasteful number, since it uses less digits than its factorization.

31452080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 31452080 is about 5608.2154024253. The cubic root of 31452080 is about 315.6577504819.

Adding to 31452080 its reverse (8025413), we get a palindrome (39477493).

It can be divided in two parts, 3145 and 2080, that added together give a palindrome (5225).

The spelling of 31452080 in words is "thirty-one million, four hundred fifty-two thousand, eighty".