45205405 has 16 divisors (see below), whose sum is σ = 62210304. Its totient is φ = 30890880.

The previous prime is 45205367. The next prime is 45205439. The reversal of 45205405 is 50450254.

It is not a de Polignac number, because 45205405 - 2⁹ = 45204893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45205405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8809 + ... + 12961.

It is an arithmetic number, because the mean of its divisors is an integer number (3888144).

Almost surely, 2^45205405 is an apocalyptic number.

It is an amenable number.

45205405 is a deficient number, since it is larger than the sum of its proper divisors (17004899).

45205405 is a wasteful number, since it uses less digits than its factorization.

45205405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 45205405 is about 6723.4964862042. The cubic root of 45205405 is about 356.2296970065.

Adding to 45205405 its reverse (50450254), we get a palindrome (95655659).

The spelling of 45205405 in words is "forty-five million, two hundred five thousand, four hundred five".