43009002 has 32 divisors (see below), whose sum is σ = 96465600. Its totient is φ = 14202864.

The previous prime is 43008967. The next prime is 43009037. The reversal of 43009002 is 20090034.

It is an interprime number because it is at equal distance from previous prime (43008967) and next prime (43009037).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233 + ... + 9539.

It is an arithmetic number, because the mean of its divisors is an integer number (3014550).

Almost surely, 2^43009002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43009002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48232800).

43009002 is an abundant number, since it is smaller than the sum of its proper divisors (53456598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43009002 is a wasteful number, since it uses less digits than its factorization.

43009002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427 (or 7421 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 43009002 is about 6558.1248844468. The cubic root of 43009002 is about 350.3642520765.

Adding to 43009002 its reverse (20090034), we get a palindrome (63099036).

The spelling of 43009002 in words is "forty-three million, nine thousand, two".