73749216 has 24 divisors (see below), whose sum is σ = 193591944. Its totient is φ = 24583040.

The previous prime is 73749209. The next prime is 73749239. The reversal of 73749216 is 61294737.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×73749216² = 10877893721229312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384015 + ... + 384206.

It is an arithmetic number, because the mean of its divisors is an integer number (8066331).

Almost surely, 2^73749216 is an apocalyptic number.

It is an amenable number.

73749216 is an abundant number, since it is smaller than the sum of its proper divisors (119842728).

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

73749216 is a wasteful number, since it uses less digits than its factorization.

73749216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768234 (or 768226 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 73749216 is about 8587.7363722928. The cubic root of 73749216 is about 419.3588403166.

The spelling of 73749216 in words is "seventy-three million, seven hundred forty-nine thousand, two hundred sixteen".