73875420 has 72 divisors (see below), whose sum is σ = 235893840. Its totient is φ = 18662400.

The previous prime is 73875407. The next prime is 73875433. The reversal of 73875420 is 2457837.

It is an interprime number because it is at equal distance from previous prime (73875407) and next prime (73875433).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7381 + ... + 14220.

Almost surely, 2^73875420 is an apocalyptic number.

It is an amenable number.

73875420 is an abundant number, since it is smaller than the sum of its proper divisors (162018420).

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

73875420 is a wasteful number, since it uses less digits than its factorization.

73875420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 73875420 is about 8595.0811514494. The cubic root of 73875420 is about 419.5979145075.

The spelling of 73875420 in words is "seventy-three million, eight hundred seventy-five thousand, four hundred twenty".