64294992 has 80 divisors (see below), whose sum is σ = 190543360. Its totient is φ = 20736000.

The previous prime is 64294987. The next prime is 64294999. The reversal of 64294992 is 29949246.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64294999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10992 + ... + 15792.

It is an arithmetic number, because the mean of its divisors is an integer number (2381792).

Almost surely, 2^64294992 is an apocalyptic number.

64294992 is a gapful number since it is divisible by the number (62) 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 64294992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95271680).

64294992 is an abundant number, since it is smaller than the sum of its proper divisors (126248368).

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

64294992 is a wasteful number, since it uses less digits than its factorization.

64294992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4837 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 64294992 is about 8018.4158036360. The cubic root of 64294992 is about 400.6136248467.

The spelling of 64294992 in words is "sixty-four million, two hundred ninety-four thousand, nine hundred ninety-two".