73416720 has 80 divisors (see below), whose sum is σ = 245109312. Its totient is φ = 18071040.

The previous prime is 73416697. The next prime is 73416743. The reversal of 73416720 is 2761437.

It is an interprime number because it is at equal distance from previous prime (73416697) and next prime (73416743).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8646 + ... + 14885.

Almost surely, 2^73416720 is an apocalyptic number.

It is an amenable number.

73416720 is an abundant number, since it is smaller than the sum of its proper divisors (171692592).

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

73416720 is a wasteful number, since it uses less digits than its factorization.

73416720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23560 (or 23554 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 73416720 is about 8568.3557349120. The cubic root of 73416720 is about 418.7276688173.

The spelling of 73416720 in words is "seventy-three million, four hundred sixteen thousand, seven hundred twenty".