420323057 has 16 divisors (see below), whose sum is σ = 524686464. Its totient is φ = 327120000.

The previous prime is 420323041. The next prime is 420323081. The reversal of 420323057 is 750323024.

It is a cyclic number.

It is not a de Polignac number, because 420323057 - 2⁴ = 420323041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420323027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69557 + ... + 75357.

It is an arithmetic number, because the mean of its divisors is an integer number (32792904).

Almost surely, 2^420323057 is an apocalyptic number.

It is an amenable number.

420323057 is a deficient number, since it is larger than the sum of its proper divisors (104363407).

420323057 is a wasteful number, since it uses less digits than its factorization.

420323057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 420323057 is about 20501.7818006143. The cubic root of 420323057 is about 749.0792000400.

The spelling of 420323057 in words is "four hundred twenty million, three hundred twenty-three thousand, fifty-seven".