421236052 has 12 divisors (see below), whose sum is σ = 737548000. Its totient is φ = 210508056.

The previous prime is 421236001. The next prime is 421236077. The reversal of 421236052 is 250632124.

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, 18552 + ... + 34447.

Almost surely, 2^421236052 is an apocalyptic number.

It is an amenable number.

421236052 is a deficient number, since it is larger than the sum of its proper divisors (316311948).

421236052 is a wasteful number, since it uses less digits than its factorization.

421236052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54990 (or 54988 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 421236052 is about 20524.0359578714. The cubic root of 421236052 is about 749.6211728337.

Adding to 421236052 its reverse (250632124), we get a palindrome (671868176).

The spelling of 421236052 in words is "four hundred twenty-one million, two hundred thirty-six thousand, fifty-two".