31472064 has 140 divisors (see below), whose sum is σ = 100684584. Its totient is φ = 9662976.

The previous prime is 31472053. The next prime is 31472069. The reversal of 31472064 is 46027413.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31472069) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67159 + ... + 67625.

Almost surely, 2^31472064 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 31472064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50342292).

31472064 is an abundant number, since it is smaller than the sum of its proper divisors (69212520).

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

31472064 is a wasteful number, since it uses less digits than its factorization.

31472064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 31472064 is about 5609.9967914429. The cubic root of 31472064 is about 315.7245904592.

Adding to 31472064 its reverse (46027413), we get a palindrome (77499477).

The spelling of 31472064 in words is "thirty-one million, four hundred seventy-two thousand, sixty-four".