43742780 has 24 divisors (see below), whose sum is σ = 95854752. Its totient is φ = 16736192.

The previous prime is 43742779. The next prime is 43742791. The reversal of 43742780 is 8724734.

It is a self number, because there is not a number n which added to its sum of digits gives 43742780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47087 + ... + 48006.

It is an arithmetic number, because the mean of its divisors is an integer number (3993948).

Almost surely, 2^43742780 is an apocalyptic number.

It is an amenable number.

43742780 is an abundant number, since it is smaller than the sum of its proper divisors (52111972).

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

43742780 is a wasteful number, since it uses less digits than its factorization.

43742780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95125 (or 95123 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 43742780 is about 6613.8324744432. The cubic root of 43742780 is about 352.3455521095.

The spelling of 43742780 in words is "forty-three million, seven hundred forty-two thousand, seven hundred eighty".