45872281 has 48 divisors (see below), whose sum is σ = 62512128. Its totient is φ = 33264000.

The previous prime is 45872269. The next prime is 45872303. The reversal of 45872281 is 18227854.

It is not a de Polignac number, because 45872281 - 2¹³ = 45864089 is a prime.

It is a super-2 number, since 2×45872281² = 4208532328285922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45872281.

It is not an unprimeable number, because it can be changed into a prime (45872201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454131 + ... + 454231.

It is an arithmetic number, because the mean of its divisors is an integer number (1302336).

Almost surely, 2^45872281 is an apocalyptic number.

It is an amenable number.

45872281 is a deficient number, since it is larger than the sum of its proper divisors (16639847).

45872281 is a wasteful number, since it uses less digits than its factorization.

45872281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 175 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 45872281 is about 6772.9078688551. The cubic root of 45872281 is about 357.9728686408.

The spelling of 45872281 in words is "forty-five million, eight hundred seventy-two thousand, two hundred eighty-one".