422520306 has 16 divisors (see below), whose sum is σ = 910043904. Its totient is φ = 130006224.

The previous prime is 422520289. The next prime is 422520323. The reversal of 422520306 is 603025224.

It is an interprime number because it is at equal distance from previous prime (422520289) and next prime (422520323).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2708386 + ... + 2708541.

It is an arithmetic number, because the mean of its divisors is an integer number (56877744).

Almost surely, 2^422520306 is an apocalyptic number.

422520306 is an abundant number, since it is smaller than the sum of its proper divisors (487523598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422520306 is a wasteful number, since it uses less digits than its factorization.

422520306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416945.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 422520306 is about 20555.2987329302. The cubic root of 422520306 is about 750.3822087444.

It can be divided in two parts, 4225 and 20306, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 422520306 in words is "four hundred twenty-two million, five hundred twenty thousand, three hundred six".