73406442 has 16 divisors (see below), whose sum is σ = 155449152. Its totient is φ = 23029440.

The previous prime is 73406423. The next prime is 73406447. The reversal of 73406442 is 24460437.

It is not an unprimeable number, because it can be changed into a prime (73406447) 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, 359734 + ... + 359937.

It is an arithmetic number, because the mean of its divisors is an integer number (9715572).

Almost surely, 2^73406442 is an apocalyptic number.

73406442 is an abundant number, since it is smaller than the sum of its proper divisors (82042710).

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

73406442 is a wasteful number, since it uses less digits than its factorization.

73406442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719693.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 73406442 is about 8567.7559489052. The cubic root of 73406442 is about 418.7081279288.

Adding to 73406442 its reverse (24460437), we get a palindrome (97866879).

The spelling of 73406442 in words is "seventy-three million, four hundred six thousand, four hundred forty-two".