64269645 has 16 divisors (see below), whose sum is σ = 112180032. Its totient is φ = 31160960.

The previous prime is 64269643. The next prime is 64269679. The reversal of 64269645 is 54696246.

It is not a de Polignac number, because 64269645 - 2¹ = 64269643 is a prime.

It is a super-3 number, since 3×64269645³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64269597 and 64269606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64269643) 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, 194592 + ... + 194921.

It is an arithmetic number, because the mean of its divisors is an integer number (7011252).

Almost surely, 2^64269645 is an apocalyptic number.

It is an amenable number.

64269645 is a deficient number, since it is larger than the sum of its proper divisors (47910387).

64269645 is a wasteful number, since it uses less digits than its factorization.

64269645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389532.

The product of its digits is 311040, while the sum is 42.

The square root of 64269645 is about 8016.8350987157. The cubic root of 64269645 is about 400.5609733212.

The spelling of 64269645 in words is "sixty-four million, two hundred sixty-nine thousand, six hundred forty-five".