64246480 has 40 divisors (see below), whose sum is σ = 151490304. Its totient is φ = 25334400.

The previous prime is 64246471. The next prime is 64246487. The reversal of 64246480 is 8464246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×64246480² = 8255220384780800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64246487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25 + ... + 11335.

Almost surely, 2^64246480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64246480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75745152).

64246480 is an abundant number, since it is smaller than the sum of its proper divisors (87243824).

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

64246480 is a wasteful number, since it uses less digits than its factorization.

64246480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395 (or 11389 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 64246480 is about 8015.3901963660. The cubic root of 64246480 is about 400.5128422012.

The spelling of 64246480 in words is "sixty-four million, two hundred forty-six thousand, four hundred eighty".