64449435 has 16 divisors (see below), whose sum is σ = 103864320. Its totient is φ = 34124640.

The previous prime is 64449433. The next prime is 64449443. The reversal of 64449435 is 53494446.

It is not a de Polignac number, because 64449435 - 2¹ = 64449433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64449393 and 64449402.

It is not an unprimeable number, because it can be changed into a prime (64449433) 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, 13371 + ... + 17540.

It is an arithmetic number, because the mean of its divisors is an integer number (6491520).

Almost surely, 2^64449435 is an apocalyptic number.

64449435 is a deficient number, since it is larger than the sum of its proper divisors (39414885).

64449435 is a wasteful number, since it uses less digits than its factorization.

64449435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31058.

The product of its digits is 207360, while the sum is 39.

The square root of 64449435 is about 8028.0405454880. The cubic root of 64449435 is about 400.9341396761.

The spelling of 64449435 in words is "sixty-four million, four hundred forty-nine thousand, four hundred thirty-five".