45438453 has 6 divisors (see below), whose sum is σ = 65633334. Its totient is φ = 30292296.

The previous prime is 45438451. The next prime is 45438461. The reversal of 45438453 is 35483454.

It can be written as a sum of positive squares in only one way, i.e., 28323684 + 17114769 = 5322^2 + 4137^2 .

It is not a de Polignac number, because 45438453 - 2¹ = 45438451 is a prime.

It is a super-2 number, since 2×45438453² = 4129306022066418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438451) 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, 2524350 + ... + 2524367.

It is an arithmetic number, because the mean of its divisors is an integer number (10938889).

Almost surely, 2^45438453 is an apocalyptic number.

It is an amenable number.

45438453 is a deficient number, since it is larger than the sum of its proper divisors (20194881).

45438453 is a wasteful number, since it uses less digits than its factorization.

45438453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048723 (or 5048720 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 45438453 is about 6740.8050706129. The cubic root of 45438453 is about 356.8408065505.

It can be divided in two parts, 4543 and 8453, that added together give a square (12996 = 114²).

The spelling of 45438453 in words is "forty-five million, four hundred thirty-eight thousand, four hundred fifty-three".