73542180 has 24 divisors (see below), whose sum is σ = 205918272. Its totient is φ = 19611232.

The previous prime is 73542113. The next prime is 73542193. The reversal of 73542180 is 8124537.

It is a hoax number, since the sum of its digits (30) 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 (30).

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, 612792 + ... + 612911.

It is an arithmetic number, because the mean of its divisors is an integer number (8579928).

Almost surely, 2^73542180 is an apocalyptic number.

It is an amenable number.

73542180 is an abundant number, since it is smaller than the sum of its proper divisors (132376092).

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

73542180 is a wasteful number, since it uses less digits than its factorization.

73542180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225715 (or 1225713 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 73542180 is about 8575.6737344654. The cubic root of 73542180 is about 418.9660508338.

The spelling of 73542180 in words is "seventy-three million, five hundred forty-two thousand, one hundred eighty".