73975420 has 12 divisors (see below), whose sum is σ = 155348424. Its totient is φ = 29590160.

The previous prime is 73975411. The next prime is 73975423. The reversal of 73975420 is 2457937.

It is a self number, because there is not a number n which added to its sum of digits gives 73975420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73975423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1849366 + ... + 1849405.

It is an arithmetic number, because the mean of its divisors is an integer number (12945702).

Almost surely, 2^73975420 is an apocalyptic number.

It is an amenable number.

73975420 is an abundant number, since it is smaller than the sum of its proper divisors (81373004).

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

73975420 is a wasteful number, since it uses less digits than its factorization.

73975420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698780 (or 3698778 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 73975420 is about 8600.8964649041. The cubic root of 73975420 is about 419.7871559493.

The spelling of 73975420 in words is "seventy-three million, nine hundred seventy-five thousand, four hundred twenty".