64047120 has 40 divisors (see below), whose sum is σ = 198546816. Its totient is φ = 17079168.

The previous prime is 64047107. The next prime is 64047121. The reversal of 64047120 is 2174046.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (64047121) 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, 133192 + ... + 133671.

Almost surely, 2^64047120 is an apocalyptic number.

64047120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64047120 is an abundant number, since it is smaller than the sum of its proper divisors (134499696).

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

64047120 is a wasteful number, since it uses less digits than its factorization.

64047120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266879 (or 266873 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 64047120 is about 8002.9444581354. The cubic root of 64047120 is about 400.0981425848.

The spelling of 64047120 in words is "sixty-four million, forty-seven thousand, one hundred twenty".