420351140 has 24 divisors (see below), whose sum is σ = 962986752. Its totient is φ = 152854880.

The previous prime is 420351131. The next prime is 420351181. The reversal of 420351140 is 41153024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955124 + ... + 955563.

It is an arithmetic number, because the mean of its divisors is an integer number (40124448).

Almost surely, 2^420351140 is an apocalyptic number.

It is an amenable number.

420351140 is an abundant number, since it is smaller than the sum of its proper divisors (542635612).

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

420351140 is a wasteful number, since it uses less digits than its factorization.

420351140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910707 (or 1910705 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420351140 is about 20502.4666808655. The cubic root of 420351140 is about 749.0958823849.

The spelling of 420351140 in words is "four hundred twenty million, three hundred fifty-one thousand, one hundred forty".