75426449 has 8 divisors (see below), whose sum is σ = 86288640. Its totient is φ = 64586016.

The previous prime is 75426437. The next prime is 75426487. The reversal of 75426449 is 94462457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75426449 - 2²⁴ = 58649233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75426149) 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, 2837 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (10786080).

Almost surely, 2^75426449 is an apocalyptic number.

It is an amenable number.

75426449 is a deficient number, since it is larger than the sum of its proper divisors (10862191).

75426449 is a wasteful number, since it uses less digits than its factorization.

75426449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10879.

The product of its digits is 241920, while the sum is 41.

The square root of 75426449 is about 8684.8401827552. The cubic root of 75426449 is about 422.5141136468.

The spelling of 75426449 in words is "seventy-five million, four hundred twenty-six thousand, four hundred forty-nine".