420148867 has 4 divisors (see below), whose sum is σ = 420195600. Its totient is φ = 420102136.

The previous prime is 420148849. The next prime is 420148873. The reversal of 420148867 is 768841024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420148867 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420148837) 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, 5143 + ... + 29440.

It is an arithmetic number, because the mean of its divisors is an integer number (105048900).

Almost surely, 2^420148867 is an apocalyptic number.

420148867 is a deficient number, since it is larger than the sum of its proper divisors (46733).

420148867 is a wasteful number, since it uses less digits than its factorization.

420148867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46732.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 420148867 is about 20497.5331930454. The cubic root of 420148867 is about 748.9757081087.

The spelling of 420148867 in words is "four hundred twenty million, one hundred forty-eight thousand, eight hundred sixty-seven".