421195144 has 16 divisors (see below), whose sum is σ = 790074000. Its totient is φ = 210508752.

The previous prime is 421195139. The next prime is 421195147. The reversal of 421195144 is 441591124.

It is not an unprimeable number, because it can be changed into a prime (421195147) 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, 11839 + ... + 31345.

It is an arithmetic number, because the mean of its divisors is an integer number (49379625).

Almost surely, 2^421195144 is an apocalyptic number.

It is an amenable number.

421195144 is a deficient number, since it is larger than the sum of its proper divisors (368878856).

421195144 is a wasteful number, since it uses less digits than its factorization.

421195144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22212 (or 22208 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 421195144 is about 20523.0393460618. The cubic root of 421195144 is about 749.5969057626.

The spelling of 421195144 in words is "four hundred twenty-one million, one hundred ninety-five thousand, one hundred forty-four".