420380342 has 8 divisors (see below), whose sum is σ = 630754536. Its totient is φ = 210128832.

The previous prime is 420380329. The next prime is 420380351. The reversal of 420380342 is 243083024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21563 + ... + 36134.

It is an arithmetic number, because the mean of its divisors is an integer number (78844317).

Almost surely, 2^420380342 is an apocalyptic number.

420380342 is a deficient number, since it is larger than the sum of its proper divisors (210374194).

420380342 is a wasteful number, since it uses less digits than its factorization.

420380342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61342.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 420380342 is about 20503.1788267088. The cubic root of 420380342 is about 749.1132286694.

The spelling of 420380342 in words is "four hundred twenty million, three hundred eighty thousand, three hundred forty-two".