455721120 has 96 divisors (see below), whose sum is σ = 1595039040. Its totient is φ = 121524480.

The previous prime is 455721113. The next prime is 455721143. The reversal of 455721120 is 21127554.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-4 number, since 4×455721120⁴ (a number of 36 digits) contains 4444 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 48426 + ... + 57065.

It is an arithmetic number, because the mean of its divisors is an integer number (16614990).

Almost surely, 2^455721120 is an apocalyptic number.

455721120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455721120 is an abundant number, since it is smaller than the sum of its proper divisors (1139317920).

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

455721120 is a wasteful number, since it uses less digits than its factorization.

455721120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105515 (or 105501 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 455721120 is about 21347.6256290951. The cubic root of 455721120 is about 769.5432834386.

Adding to 455721120 its reverse (21127554), we get a palindrome (476848674).

The spelling of 455721120 in words is "four hundred fifty-five million, seven hundred twenty-one thousand, one hundred twenty".