73748409 has 16 divisors (see below), whose sum is σ = 112512000. Its totient is φ = 42091920.

The previous prime is 73748401. The next prime is 73748413. The reversal of 73748409 is 90484737.

It is not a de Polignac number, because 73748409 - 2³ = 73748401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73748401) 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, 23092 + ... + 26090.

It is an arithmetic number, because the mean of its divisors is an integer number (7032000).

Almost surely, 2^73748409 is an apocalyptic number.

It is an amenable number.

73748409 is a deficient number, since it is larger than the sum of its proper divisors (38763591).

73748409 is a wasteful number, since it uses less digits than its factorization.

73748409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 73748409 is about 8587.6893865579. The cubic root of 73748409 is about 419.3573107012.

The spelling of 73748409 in words is "seventy-three million, seven hundred forty-eight thousand, four hundred nine".