73463240 has 16 divisors (see below), whose sum is σ = 165292380. Its totient is φ = 29385280.

The previous prime is 73463231. The next prime is 73463249. The reversal of 73463240 is 4236437.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73463231) and next prime (73463249).

It can be written as a sum of positive squares in 2 ways, for example, as 70593604 + 2869636 = 8402^2 + 1694^2 .

It is not an unprimeable number, because it can be changed into a prime (73463249) 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, 918251 + ... + 918330.

Almost surely, 2^73463240 is an apocalyptic number.

It is an amenable number.

73463240 is an abundant number, since it is smaller than the sum of its proper divisors (91829140).

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

73463240 is a wasteful number, since it uses less digits than its factorization.

73463240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836592 (or 1836588 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 73463240 is about 8571.0699448785. The cubic root of 73463240 is about 418.8160914469.

Adding to 73463240 its reverse (4236437), we get a palindrome (77699677).

The spelling of 73463240 in words is "seventy-three million, four hundred sixty-three thousand, two hundred forty".