43738920 has 64 divisors (see below), whose sum is σ = 145800000. Its totient is φ = 11663424.

The previous prime is 43738913. The next prime is 43738951. The reversal of 43738920 is 2983734.

43738920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19170 + ... + 21329.

It is an arithmetic number, because the mean of its divisors is an integer number (2278125).

Almost surely, 2^43738920 is an apocalyptic number.

43738920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43738920 is an abundant number, since it is smaller than the sum of its proper divisors (102061080).

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

43738920 is a wasteful number, since it uses less digits than its factorization.

43738920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40519 (or 40509 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 43738920 is about 6613.5406553525. The cubic root of 43738920 is about 352.3351877794.

The spelling of 43738920 in words is "forty-three million, seven hundred thirty-eight thousand, nine hundred twenty".