420122377 has 4 divisors (see below), whose sum is σ = 444835476. Its totient is φ = 395409280.

The previous prime is 420122363. The next prime is 420122399. The reversal of 420122377 is 773221024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118613881 + 301508496 = 10891^2 + 17364^2 .

It is a cyclic number.

It is not a de Polignac number, because 420122377 - 2¹⁹ = 419598089 is a prime.

It is a super-2 number, since 2×420122377² = 353005623312260258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420122077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12356524 + ... + 12356557.

It is an arithmetic number, because the mean of its divisors is an integer number (111208869).

Almost surely, 2^420122377 is an apocalyptic number.

It is an amenable number.

420122377 is a deficient number, since it is larger than the sum of its proper divisors (24713099).

420122377 is a wasteful number, since it uses less digits than its factorization.

420122377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24713098.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 420122377 is about 20496.8870075434. The cubic root of 420122377 is about 748.9599670345.

The spelling of 420122377 in words is "four hundred twenty million, one hundred twenty-two thousand, three hundred seventy-seven".