45871389 has 24 divisors (see below), whose sum is σ = 71660160. Its totient is φ = 28165248.

The previous prime is 45871387. The next prime is 45871391. The reversal of 45871389 is 98317854.

It is an interprime number because it is at equal distance from previous prime (45871387) and next prime (45871391).

It is not a de Polignac number, because 45871389 - 2¹ = 45871387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45871381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4002 + ... + 10380.

It is an arithmetic number, because the mean of its divisors is an integer number (2985840).

Almost surely, 2^45871389 is an apocalyptic number.

It is an amenable number.

45871389 is a deficient number, since it is larger than the sum of its proper divisors (25788771).

45871389 is a wasteful number, since it uses less digits than its factorization.

45871389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6449 (or 6446 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 45871389 is about 6772.8420179420. The cubic root of 45871389 is about 357.9705483298.

The spelling of 45871389 in words is "forty-five million, eight hundred seventy-one thousand, three hundred eighty-nine".