420345346 has 16 divisors (see below), whose sum is σ = 647813376. Its totient is φ = 204461536.

The previous prime is 420345307. The next prime is 420345377. The reversal of 420345346 is 643543024.

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, 2310 + ... + 29086.

It is an arithmetic number, because the mean of its divisors is an integer number (40488336).

Almost surely, 2^420345346 is an apocalyptic number.

420345346 is a deficient number, since it is larger than the sum of its proper divisors (227468030).

420345346 is a wasteful number, since it uses less digits than its factorization.

420345346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26993.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 420345346 is about 20502.3253803075. The cubic root of 420345346 is about 749.0924405946.

The spelling of 420345346 in words is "four hundred twenty million, three hundred forty-five thousand, three hundred forty-six".