420354334 has 4 divisors (see below), whose sum is σ = 630531504. Its totient is φ = 210177166.

The previous prime is 420354313. The next prime is 420354349. The reversal of 420354334 is 433453024.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×420354334² = 353395532225167112, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 105088582 + ... + 105088585.

It is an arithmetic number, because the mean of its divisors is an integer number (157632876).

Almost surely, 2^420354334 is an apocalyptic number.

420354334 is a deficient number, since it is larger than the sum of its proper divisors (210177170).

420354334 is a wasteful number, since it uses less digits than its factorization.

420354334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210177169.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 420354334 is about 20502.5445737840. The cubic root of 420354334 is about 749.0977796925.

The spelling of 420354334 in words is "four hundred twenty million, three hundred fifty-four thousand, three hundred thirty-four".