73270740 has 48 divisors (see below), whose sum is σ = 207643968. Its totient is φ = 19302144.

The previous prime is 73270739. The next prime is 73270741. The reversal of 73270740 is 4707237.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73270739) and next prime (73270741).

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

It is a junction number, because it is equal to n+sod(n) for n = 73270698 and 73270707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73270741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377 + ... + 12336.

It is an arithmetic number, because the mean of its divisors is an integer number (4325916).

Almost surely, 2^73270740 is an apocalyptic number.

It is an amenable number.

73270740 is an abundant number, since it is smaller than the sum of its proper divisors (134373228).

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

73270740 is a wasteful number, since it uses less digits than its factorization.

73270740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14808 (or 14806 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 73270740 is about 8559.8329422951. The cubic root of 73270740 is about 418.4499554044.

Adding to 73270740 its reverse (4707237), we get a palindrome (77977977).

The spelling of 73270740 in words is "seventy-three million, two hundred seventy thousand, seven hundred forty".