421320412 has 24 divisors (see below), whose sum is σ = 753250400. Its totient is φ = 206141760.

The previous prime is 421320409. The next prime is 421320437. The reversal of 421320412 is 214023124.

It is a self number, because there is not a number n which added to its sum of digits gives 421320412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44218 + ... + 52894.

Almost surely, 2^421320412 is an apocalyptic number.

It is an amenable number.

421320412 is a deficient number, since it is larger than the sum of its proper divisors (331929988).

421320412 is a wasteful number, since it uses less digits than its factorization.

421320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8941 (or 8939 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 421320412 is about 20526.0910063266. The cubic root of 421320412 is about 749.6712111442.

Adding to 421320412 its reverse (214023124), we get a palindrome (635343536).

The spelling of 421320412 in words is "four hundred twenty-one million, three hundred twenty thousand, four hundred twelve".