73253480 has 32 divisors (see below), whose sum is σ = 165135240. Its totient is φ = 29245440.

The previous prime is 73253471. The next prime is 73253483. The reversal of 73253480 is 8435237.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71808676 + 1444804 = 8474^2 + 1202^2 .

It is a super-2 number, since 2×73253480² = 10732144664220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73253483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24212 + ... + 27068.

Almost surely, 2^73253480 is an apocalyptic number.

It is an amenable number.

73253480 is an abundant number, since it is smaller than the sum of its proper divisors (91881760).

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

73253480 is a wasteful number, since it uses less digits than its factorization.

73253480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 73253480 is about 8558.8246856680. The cubic root of 73253480 is about 418.4170954778.

The spelling of 73253480 in words is "seventy-three million, two hundred fifty-three thousand, four hundred eighty".