420120054 has 32 divisors (see below), whose sum is σ = 948912480. Its totient is φ = 137743200.

The previous prime is 420120017. The next prime is 420120079. The reversal of 420120054 is 450021024.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 60477 + ... + 67064.

It is an arithmetic number, because the mean of its divisors is an integer number (29653515).

Almost surely, 2^420120054 is an apocalyptic number.

420120054 is an abundant number, since it is smaller than the sum of its proper divisors (528792426).

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

420120054 is a wasteful number, since it uses less digits than its factorization.

420120054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127613 (or 127607 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 420120054 is about 20496.8303403234. The cubic root of 420120054 is about 748.9585866135.

Adding to 420120054 its reverse (450021024), we get a palindrome (870141078).

The spelling of 420120054 in words is "four hundred twenty million, one hundred twenty thousand, fifty-four".