420328252 has 12 divisors (see below), whose sum is σ = 746553640. Its totient is φ = 207027216.

The previous prime is 420328231. The next prime is 420328253. The reversal of 420328252 is 252823024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 420328252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420328253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783927 + ... + 784462.

Almost surely, 2^420328252 is an apocalyptic number.

It is an amenable number.

420328252 is a deficient number, since it is larger than the sum of its proper divisors (326225388).

420328252 is a wasteful number, since it uses less digits than its factorization.

420328252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568460 (or 1568458 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 420328252 is about 20501.9084965278. The cubic root of 420328252 is about 749.0822861189.

The spelling of 420328252 in words is "four hundred twenty million, three hundred twenty-eight thousand, two hundred fifty-two".