73240442 has 16 divisors (see below), whose sum is σ = 120204000. Its totient is φ = 33192240.

The previous prime is 73240423. The next prime is 73240451. The reversal of 73240442 is 24404237.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (7512750).

Almost surely, 2^73240442 is an apocalyptic number.

73240442 is a deficient number, since it is larger than the sum of its proper divisors (46963558).

73240442 is a wasteful number, since it uses less digits than its factorization.

73240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9901.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 73240442 is about 8558.0629817734. The cubic root of 73240442 is about 418.3922700552.

Adding to 73240442 its reverse (24404237), we get a palindrome (97644679).

The spelling of 73240442 in words is "seventy-three million, two hundred forty thousand, four hundred forty-two".