64849450 has 24 divisors (see below), whose sum is σ = 121072608. Its totient is φ = 25842480.

The previous prime is 64849429. The next prime is 64849453. The reversal of 64849450 is 5494846.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64849453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11859 + ... + 16441.

It is an arithmetic number, because the mean of its divisors is an integer number (5044692).

Almost surely, 2^64849450 is an apocalyptic number.

64849450 is a deficient number, since it is larger than the sum of its proper divisors (56223158).

64849450 is a wasteful number, since it uses less digits than its factorization.

64849450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4878 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 64849450 is about 8052.9156210655. The cubic root of 64849450 is about 401.7619152417.

The spelling of 64849450 in words is "sixty-four million, eight hundred forty-nine thousand, four hundred fifty".