420893146 has 8 divisors (see below), whose sum is σ = 658789344. Its totient is φ = 201296700.

The previous prime is 420893071. The next prime is 420893147. The reversal of 420893146 is 641398024.

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

It is not an unprimeable number, because it can be changed into a prime (420893147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4574880 + ... + 4574971.

It is an arithmetic number, because the mean of its divisors is an integer number (82348668).

Almost surely, 2^420893146 is an apocalyptic number.

420893146 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

420893146 is a deficient number, since it is larger than the sum of its proper divisors (237896198).

420893146 is a wasteful number, since it uses less digits than its factorization.

420893146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9149876.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 420893146 is about 20515.6804907856. The cubic root of 420893146 is about 749.4177086253.

The spelling of 420893146 in words is "four hundred twenty million, eight hundred ninety-three thousand, one hundred forty-six".