420919140 has 48 divisors (see below), whose sum is σ = 1179988992. Its totient is φ = 112110336.

The previous prime is 420919123. The next prime is 420919151. The reversal of 420919140 is 41919024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 420919098 and 420919107.

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, 52477 + ... + 59963.

It is an arithmetic number, because the mean of its divisors is an integer number (24583104).

Almost surely, 2^420919140 is an apocalyptic number.

It is an amenable number.

420919140 is an abundant number, since it is smaller than the sum of its proper divisors (759069852).

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

420919140 is a wasteful number, since it uses less digits than its factorization.

420919140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436 (or 8434 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 420919140 is about 20516.3139964273. The cubic root of 420919140 is about 749.4331361062.

The spelling of 420919140 in words is "four hundred twenty million, nine hundred nineteen thousand, one hundred forty".