43630461 has 16 divisors (see below), whose sum is σ = 73872000. Its totient is φ = 24931584.

The previous prime is 43630459. The next prime is 43630463. The reversal of 43630461 is 16403634.

It is an interprime number because it is at equal distance from previous prime (43630459) and next prime (43630463).

It is not a de Polignac number, because 43630461 - 2¹ = 43630459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43630463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115236 + ... + 115613.

It is an arithmetic number, because the mean of its divisors is an integer number (4617000).

Almost surely, 2^43630461 is an apocalyptic number.

It is an amenable number.

43630461 is a deficient number, since it is larger than the sum of its proper divisors (30241539).

43630461 is a wasteful number, since it uses less digits than its factorization.

43630461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230865 (or 230859 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 43630461 is about 6605.3357976715. The cubic root of 43630461 is about 352.0437192813.

The spelling of 43630461 in words is "forty-three million, six hundred thirty thousand, four hundred sixty-one".