43245820 has 48 divisors (see below), whose sum is σ = 93905280. Its totient is φ = 16720704.

The previous prime is 43245817. The next prime is 43245821. The reversal of 43245820 is 2854234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43245821) 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, 78787 + ... + 79333.

It is an arithmetic number, because the mean of its divisors is an integer number (1956360).

Almost surely, 2^43245820 is an apocalyptic number.

It is an amenable number.

43245820 is an abundant number, since it is smaller than the sum of its proper divisors (50659460).

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

43245820 is a wasteful number, since it uses less digits than its factorization.

43245820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

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

The square root of 43245820 is about 6576.1554117889. The cubic root of 43245820 is about 351.0061389121.

The spelling of 43245820 in words is "forty-three million, two hundred forty-five thousand, eight hundred twenty".