421016732 has 12 divisors (see below), whose sum is σ = 739441080. Its totient is φ = 209747856.

The previous prime is 421016707. The next prime is 421016749. The reversal of 421016732 is 237610124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188882 + ... + 191097.

It is an arithmetic number, because the mean of its divisors is an integer number (61620090).

Almost surely, 2^421016732 is an apocalyptic number.

It is an amenable number.

421016732 is a deficient number, since it is larger than the sum of its proper divisors (318424348).

421016732 is a wasteful number, since it uses less digits than its factorization.

421016732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380260 (or 380258 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 421016732 is about 20518.6922585237. The cubic root of 421016732 is about 749.4910514474.

Adding to 421016732 its reverse (237610124), we get a palindrome (658626856).

The spelling of 421016732 in words is "four hundred twenty-one million, sixteen thousand, seven hundred thirty-two".