64420248 has 16 divisors (see below), whose sum is σ = 161050680. Its totient is φ = 21473408.

The previous prime is 64420211. The next prime is 64420261. The reversal of 64420248 is 84202446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342065 + ... + 1342112.

Almost surely, 2^64420248 is an apocalyptic number.

It is an amenable number.

64420248 is an abundant number, since it is smaller than the sum of its proper divisors (96630432).

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

64420248 is a wasteful number, since it uses less digits than its factorization.

64420248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684186 (or 2684182 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 64420248 is about 8026.2225237032. Note that the first 3 decimals coincide. The cubic root of 64420248 is about 400.8736073033.

The spelling of 64420248 in words is "sixty-four million, four hundred twenty thousand, two hundred forty-eight".