1420842 has 8 divisors (see below), whose sum is σ = 2841696. Its totient is φ = 473612.

The previous prime is 1420841. The next prime is 1420847. The reversal of 1420842 is 2480241.

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

1420842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1420841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 118398 + ... + 118409.

It is an arithmetic number, because the mean of its divisors is an integer number (355212).

2^1420842 is an apocalyptic number.

1420842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1420842 is a wasteful number, since it uses less digits than its factorization.

1420842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236812.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1420842 is about 1191.9907717764. The cubic root of 1420842 is about 112.4212980415.

The spelling of 1420842 in words is "one million, four hundred twenty thousand, eight hundred forty-two".