420772222 has 16 divisors (see below), whose sum is σ = 682364592. Its totient is φ = 193443840.

The previous prime is 420772193. The next prime is 420772241. The reversal of 420772222 is 222277024.

It is a congruent 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, 24804 + ... + 38167.

It is an arithmetic number, because the mean of its divisors is an integer number (42647787).

Almost surely, 2^420772222 is an apocalyptic number.

420772222 is a deficient number, since it is larger than the sum of its proper divisors (261592370).

420772222 is a wasteful number, since it uses less digits than its factorization.

420772222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63243.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 420772222 is about 20512.7331674743. The cubic root of 420772222 is about 749.3459316846.

The spelling of 420772222 in words is "four hundred twenty million, seven hundred seventy-two thousand, two hundred twenty-two".