64402233 has 8 divisors (see below), whose sum is σ = 98136768. Its totient is φ = 36801264.

The previous prime is 64402213. The next prime is 64402249. The reversal of 64402233 is 33220446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64402233 - 2¹³ = 64394041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64402213) 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, 1533366 + ... + 1533407.

It is an arithmetic number, because the mean of its divisors is an integer number (12267096).

Almost surely, 2^64402233 is an apocalyptic number.

It is an amenable number.

64402233 is a deficient number, since it is larger than the sum of its proper divisors (33734535).

64402233 is a wasteful number, since it uses less digits than its factorization.

64402233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066783.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 64402233 is about 8025.1001862905. The cubic root of 64402233 is about 400.8362359719.

Adding to 64402233 its reverse (33220446), we get a palindrome (97622679).

The spelling of 64402233 in words is "sixty-four million, four hundred two thousand, two hundred thirty-three".