45443861 has 4 divisors (see below), whose sum is σ = 46909824. Its totient is φ = 43977900.

The previous prime is 45443833. The next prime is 45443891. The reversal of 45443861 is 16834454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45443861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45443831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732935 + ... + 732996.

It is an arithmetic number, because the mean of its divisors is an integer number (11727456).

Almost surely, 2^45443861 is an apocalyptic number.

It is an amenable number.

45443861 is a deficient number, since it is larger than the sum of its proper divisors (1465963).

45443861 is a wasteful number, since it uses less digits than its factorization.

45443861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465962.

The product of its digits is 46080, while the sum is 35.

The square root of 45443861 is about 6741.2061977068. The cubic root of 45443861 is about 356.8549628315.

The spelling of 45443861 in words is "forty-five million, four hundred forty-three thousand, eight hundred sixty-one".