31426064 has 40 divisors (see below), whose sum is σ = 66567168. Its totient is φ = 14307840.

The previous prime is 31426051. The next prime is 31426067. The reversal of 31426064 is 46062413.

It is not an unprimeable number, because it can be changed into a prime (31426067) 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, 6569 + ... + 10295.

Almost surely, 2^31426064 is an apocalyptic number.

31426064 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31426064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33283584).

31426064 is an abundant number, since it is smaller than the sum of its proper divisors (35141104).

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

31426064 is a wasteful number, since it uses less digits than its factorization.

31426064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783 (or 3777 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 31426064 is about 5605.8954681656. The cubic root of 31426064 is about 315.5706929927.

Adding to 31426064 its reverse (46062413), we get a palindrome (77488477).

The spelling of 31426064 in words is "thirty-one million, four hundred twenty-six thousand, sixty-four".