73433820 has 24 divisors (see below), whose sum is σ = 205614864. Its totient is φ = 19582336.

The previous prime is 73433797. The next prime is 73433831. The reversal of 73433820 is 2833437.

It is a super-3 number, since 3×73433820³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 611889 + ... + 612008.

It is an arithmetic number, because the mean of its divisors is an integer number (8567286).

Almost surely, 2^73433820 is an apocalyptic number.

It is an amenable number.

73433820 is an abundant number, since it is smaller than the sum of its proper divisors (132181044).

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

73433820 is a wasteful number, since it uses less digits than its factorization.

73433820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223909 (or 1223907 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 73433820 is about 8569.3535345439. The cubic root of 73433820 is about 418.7601758870.

The spelling of 73433820 in words is "seventy-three million, four hundred thirty-three thousand, eight hundred twenty".