421045532 has 6 divisors (see below), whose sum is σ = 736829688. Its totient is φ = 210522764.

The previous prime is 421045507. The next prime is 421045543. The reversal of 421045532 is 235540124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52630688 + ... + 52630695.

It is an arithmetic number, because the mean of its divisors is an integer number (122804948).

Almost surely, 2^421045532 is an apocalyptic number.

It is an amenable number.

421045532 is a deficient number, since it is larger than the sum of its proper divisors (315784156).

421045532 is a wasteful number, since it uses less digits than its factorization.

421045532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105261387 (or 105261385 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 421045532 is about 20519.3940456340. The cubic root of 421045532 is about 749.5081409108.

Adding to 421045532 its reverse (235540124), we get a palindrome (656585656).

The spelling of 421045532 in words is "four hundred twenty-one million, forty-five thousand, five hundred thirty-two".