3420478 has 16 divisors (see below), whose sum is σ = 5423616. Its totient is φ = 1615320.

The previous prime is 3420457. The next prime is 3420481. The reversal of 3420478 is 8740243.

3420478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2025 + ... + 3307.

It is an arithmetic number, because the mean of its divisors is an integer number (338976).

Almost surely, 2^3420478 is an apocalyptic number.

3420478 is a deficient number, since it is larger than the sum of its proper divisors (2003138).

3420478 is a wasteful number, since it uses less digits than its factorization.

3420478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 3420478 is about 1849.4534327741. The cubic root of 3420478 is about 150.6707443576.

The spelling of 3420478 in words is "three million, four hundred twenty thousand, four hundred seventy-eight".