45408073 has 4 divisors (see below), whose sum is σ = 45539280. Its totient is φ = 45276868.

The previous prime is 45408061. The next prime is 45408079. The reversal of 45408073 is 37080454.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37080454 = 2 ⋅18540227.

It is a cyclic number.

It is not a de Polignac number, because 45408073 - 2¹³ = 45399881 is a prime.

It is a super-3 number, since 3×45408073³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45408079) 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, 65083 + ... + 65776.

It is an arithmetic number, because the mean of its divisors is an integer number (11384820).

Almost surely, 2^45408073 is an apocalyptic number.

It is an amenable number.

45408073 is a deficient number, since it is larger than the sum of its proper divisors (131207).

45408073 is a wasteful number, since it uses less digits than its factorization.

45408073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131206.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 45408073 is about 6738.5512537934. The cubic root of 45408073 is about 356.7612612907.

The spelling of 45408073 in words is "forty-five million, four hundred eight thousand, seventy-three".