73743820 has 24 divisors (see below), whose sum is σ = 156086784. Its totient is φ = 29264256.

The previous prime is 73743811. The next prime is 73743827. The reversal of 73743820 is 2834737.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (73743827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11977 + ... + 17056.

It is an arithmetic number, because the mean of its divisors is an integer number (6503616).

Almost surely, 2^73743820 is an apocalyptic number.

It is an amenable number.

73743820 is an abundant number, since it is smaller than the sum of its proper divisors (82342964).

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

73743820 is a wasteful number, since it uses less digits than its factorization.

73743820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29169 (or 29167 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 73743820 is about 8587.4221976097. The cubic root of 73743820 is about 419.3486123412.

The spelling of 73743820 in words is "seventy-three million, seven hundred forty-three thousand, eight hundred twenty".