45821489 has 8 divisors (see below), whose sum is σ = 52745280. Its totient is φ = 38992176.

The previous prime is 45821471. The next prime is 45821491. The reversal of 45821489 is 98412854.

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 45821489 - 2¹⁶ = 45755953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45821449) 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, 22574 + ... + 24519.

It is an arithmetic number, because the mean of its divisors is an integer number (6593160).

Almost surely, 2^45821489 is an apocalyptic number.

It is an amenable number.

45821489 is a deficient number, since it is larger than the sum of its proper divisors (6923791).

45821489 is a wasteful number, since it uses less digits than its factorization.

45821489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47239.

The product of its digits is 92160, while the sum is 41.

The square root of 45821489 is about 6769.1571853518. The cubic root of 45821489 is about 357.8406982436.

The spelling of 45821489 in words is "forty-five million, eight hundred twenty-one thousand, four hundred eighty-nine".