421842070 has 16 divisors (see below), whose sum is σ = 817724880. Its totient is φ = 155757024.

The previous prime is 421842053. The next prime is 421842089. The reversal of 421842070 is 70248124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622340 + ... + 1622599.

It is an arithmetic number, because the mean of its divisors is an integer number (51107805).

Almost surely, 2^421842070 is an apocalyptic number.

421842070 is a deficient number, since it is larger than the sum of its proper divisors (395882810).

421842070 is a wasteful number, since it uses less digits than its factorization.

421842070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244959.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 421842070 is about 20538.7942684083. The cubic root of 421842070 is about 749.9804854182.

The spelling of 421842070 in words is "four hundred twenty-one million, eight hundred forty-two thousand, seventy".