64450026 has 32 divisors (see below), whose sum is σ = 151649280. Its totient is φ = 20219328.

The previous prime is 64449997. The next prime is 64450027. The reversal of 64450026 is 62005446.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64450027) 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, 34186 + ... + 36021.

It is an arithmetic number, because the mean of its divisors is an integer number (4739040).

Almost surely, 2^64450026 is an apocalyptic number.

64450026 is an abundant number, since it is smaller than the sum of its proper divisors (87199254).

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

64450026 is a wasteful number, since it uses less digits than its factorization.

64450026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70235 (or 70229 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 64450026 is about 8028.0773538874. The cubic root of 64450026 is about 400.9353651916.

The spelling of 64450026 in words is "sixty-four million, four hundred fifty thousand, twenty-six".