420275318 has 4 divisors (see below), whose sum is σ = 630412980. Its totient is φ = 210137658.

The previous prime is 420275281. The next prime is 420275347. The reversal of 420275318 is 813572024.

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

It is a super-2 number, since 2×420275318² = 353262685840002248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105068828 + ... + 105068831.

It is an arithmetic number, because the mean of its divisors is an integer number (157603245).

Almost surely, 2^420275318 is an apocalyptic number.

420275318 is a deficient number, since it is larger than the sum of its proper divisors (210137662).

420275318 is a wasteful number, since it uses less digits than its factorization.

420275318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210137661.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 420275318 is about 20500.6175028949. The cubic root of 420275318 is about 749.0508395957.

The spelling of 420275318 in words is "four hundred twenty million, two hundred seventy-five thousand, three hundred eighteen".