1630233 has 24 divisors (see below), whose sum is σ = 2660000. Its totient is φ = 986040.

The previous prime is 1630199. The next prime is 1630243. The reversal of 1630233 is 3320361.

It is a happy number.

1630233 is a `hidden beast` number, since 1 + 630 + 2 + 33 = 666.

It is not a de Polignac number, because 1630233 - 2⁶ = 1630169 is a prime.

It is a Duffinian number.

1630233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1630243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3018 + ... + 3516.

2^1630233 is an apocalyptic number.

It is an amenable number.

1630233 is a deficient number, since it is larger than the sum of its proper divisors (1029767).

1630233 is a wasteful number, since it uses less digits than its factorization.

1630233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1630233 is about 1276.8057800621. The cubic root of 1630233 is about 117.6927995129.

Adding to 1630233 its reverse (3320361), we get a palindrome (4950594).

The spelling of 1630233 in words is "one million, six hundred thirty thousand, two hundred thirty-three".