64023340 has 12 divisors (see below), whose sum is σ = 134449056. Its totient is φ = 25609328.

The previous prime is 64023317. The next prime is 64023347. The reversal of 64023340 is 4332046.

It is not an unprimeable number, because it can be changed into a prime (64023347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600564 + ... + 1600603.

It is an arithmetic number, because the mean of its divisors is an integer number (11204088).

Almost surely, 2^64023340 is an apocalyptic number.

It is an amenable number.

64023340 is an abundant number, since it is smaller than the sum of its proper divisors (70425716).

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

64023340 is a wasteful number, since it uses less digits than its factorization.

64023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201176 (or 3201174 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 64023340 is about 8001.4586170273. The cubic root of 64023340 is about 400.0486190902.

Adding to 64023340 its reverse (4332046), we get a palindrome (68355386).

The spelling of 64023340 in words is "sixty-four million, twenty-three thousand, three hundred forty".