45046405 has 4 divisors (see below), whose sum is σ = 54055692. Its totient is φ = 36037120.

The previous prime is 45046403. The next prime is 45046423. The reversal of 45046405 is 50464054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50464054 = 2 ⋅25232027.

It can be written as a sum of positive squares in 2 ways, for example, as 31371201 + 13675204 = 5601^2 + 3698^2 .

It is not a de Polignac number, because 45046405 - 2¹ = 45046403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45046403) 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, 4504636 + ... + 4504645.

It is an arithmetic number, because the mean of its divisors is an integer number (13513923).

Almost surely, 2^45046405 is an apocalyptic number.

It is an amenable number.

45046405 is a deficient number, since it is larger than the sum of its proper divisors (9009287).

45046405 is an equidigital number, since it uses as much as digits as its factorization.

45046405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009286.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 45046405 is about 6711.6618657379. The cubic root of 45046405 is about 355.8115533596.

It can be divided in two parts, 45046 and 405, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 45046405 in words is "forty-five million, forty-six thousand, four hundred five".