420221054 has 32 divisors (see below), whose sum is σ = 706860000. Its totient is φ = 185702400.

The previous prime is 420221041. The next prime is 420221101. The reversal of 420221054 is 450122024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335822 + ... + 337070.

It is an arithmetic number, because the mean of its divisors is an integer number (22089375).

Almost surely, 2^420221054 is an apocalyptic number.

420221054 is a deficient number, since it is larger than the sum of its proper divisors (286638946).

420221054 is a wasteful number, since it uses less digits than its factorization.

420221054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 420221054 is about 20499.2939878426. The cubic root of 420221054 is about 749.0186002179.

Adding to 420221054 its reverse (450122024), we get a palindrome (870343078).

The spelling of 420221054 in words is "four hundred twenty million, two hundred twenty-one thousand, fifty-four".