73262720 has 32 divisors (see below), whose sum is σ = 175145220. Its totient is φ = 29304832.

The previous prime is 73262711. The next prime is 73262723. The reversal of 73262720 is 2726237.

It can be written as a sum of positive squares in 2 ways, for example, as 72863296 + 399424 = 8536^2 + 632^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×73262720² = 10734852283596800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73262723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56597 + ... + 57876.

Almost surely, 2^73262720 is an apocalyptic number.

It is an amenable number.

73262720 is an abundant number, since it is smaller than the sum of its proper divisors (101882500).

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

73262720 is a wasteful number, since it uses less digits than its factorization.

73262720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114492 (or 114480 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 73262720 is about 8559.3644623885. The cubic root of 73262720 is about 418.4346874129.

Adding to 73262720 its reverse (2726237), we get a palindrome (75988957).

The spelling of 73262720 in words is "seventy-three million, two hundred sixty-two thousand, seven hundred twenty".