64078980 has 96 divisors (see below), whose sum is σ = 212163840. Its totient is φ = 14138880.

The previous prime is 64078979. The next prime is 64078997. The reversal of 64078980 is 8987046.

It is a happy number.

It is a super-2 number, since 2×64078980² = 8212231355680800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9550 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (2210040).

Almost surely, 2^64078980 is an apocalyptic number.

64078980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64078980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106081920).

64078980 is an abundant number, since it is smaller than the sum of its proper divisors (148084860).

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

64078980 is a wasteful number, since it uses less digits than its factorization.

64078980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 64078980 is about 8004.9347280287. The cubic root of 64078980 is about 400.1644740281.

The spelling of 64078980 in words is "sixty-four million, seventy-eight thousand, nine hundred eighty".