45281448 has 24 divisors (see below), whose sum is σ = 122637450. Its totient is φ = 15093792.

The previous prime is 45281447. The next prime is 45281449. The reversal of 45281448 is 84418254.

It is an interprime number because it is at equal distance from previous prime (45281447) and next prime (45281449).

It can be written as a sum of positive squares in only one way, i.e., 43797924 + 1483524 = 6618^2 + 1218^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (45281447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314383 + ... + 314526.

Almost surely, 2^45281448 is an apocalyptic number.

It is an amenable number.

45281448 is an abundant number, since it is smaller than the sum of its proper divisors (77356002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45281448 is a wasteful number, since it uses less digits than its factorization.

45281448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628921 (or 628914 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 45281448 is about 6729.1491289761. The cubic root of 45281448 is about 356.4293309496.

The spelling of 45281448 in words is "forty-five million, two hundred eighty-one thousand, four hundred forty-eight".