420364755 has 32 divisors (see below), whose sum is σ = 749517120. Its totient is φ = 223534080.

The previous prime is 420364751. The next prime is 420364771. The reversal of 420364755 is 557463024.

420364755 is a `hidden beast` number, since 4 + 2 + 0 + 3 + 647 + 5 + 5 = 666.

It is not a de Polignac number, because 420364755 - 2² = 420364751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420364751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43245 + ... + 52065.

It is an arithmetic number, because the mean of its divisors is an integer number (23422410).

Almost surely, 2^420364755 is an apocalyptic number.

420364755 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

420364755 is a deficient number, since it is larger than the sum of its proper divisors (329152365).

420364755 is a wasteful number, since it uses less digits than its factorization.

420364755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188 (or 9182 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 420364755 is about 20502.7987113955. The cubic root of 420364755 is about 749.1039699331.

The spelling of 420364755 in words is "four hundred twenty million, three hundred sixty-four thousand, seven hundred fifty-five".