420345412 has 12 divisors (see below), whose sum is σ = 744916480. Its totient is φ = 207512136.

The previous prime is 420345391. The next prime is 420345427. The reversal of 420345412 is 214543024.

It is a happy 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, 664788 + ... + 665419.

Almost surely, 2^420345412 is an apocalyptic number.

It is an amenable number.

420345412 is a deficient number, since it is larger than the sum of its proper divisors (324571068).

420345412 is a wasteful number, since it uses less digits than its factorization.

420345412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330290 (or 1330288 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 420345412 is about 20502.3269898809. The cubic root of 420345412 is about 749.0924798005.

Adding to 420345412 its reverse (214543024), we get a palindrome (634888436).

The spelling of 420345412 in words is "four hundred twenty million, three hundred forty-five thousand, four hundred twelve".