420294164 has 6 divisors (see below), whose sum is σ = 735514794. Its totient is φ = 210147080.

The previous prime is 420294151. The next prime is 420294197. The reversal of 420294164 is 461492024.

It can be written as a sum of positive squares in only one way, i.e., 419922064 + 372100 = 20492^2 + 610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 420294164.

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, 52536767 + ... + 52536774.

It is an arithmetic number, because the mean of its divisors is an integer number (122585799).

Almost surely, 2^420294164 is an apocalyptic number.

It is an amenable number.

420294164 is a deficient number, since it is larger than the sum of its proper divisors (315220630).

420294164 is a wasteful number, since it uses less digits than its factorization.

420294164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105073545 (or 105073543 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 420294164 is about 20501.0771424333. The cubic root of 420294164 is about 749.0620357494.

The spelling of 420294164 in words is "four hundred twenty million, two hundred ninety-four thousand, one hundred sixty-four".