45202905 has 48 divisors (see below), whose sum is σ = 87137856. Its totient is φ = 21490560.

The previous prime is 45202903. The next prime is 45202921. The reversal of 45202905 is 50920254.

It is not a de Polignac number, because 45202905 - 2¹ = 45202903 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45202901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25374 + ... + 27096.

It is an arithmetic number, because the mean of its divisors is an integer number (1815372).

Almost surely, 2^45202905 is an apocalyptic number.

45202905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45202905 is a deficient number, since it is larger than the sum of its proper divisors (41934951).

45202905 is a wasteful number, since it uses less digits than its factorization.

45202905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 45202905 is about 6723.3105684625. The cubic root of 45202905 is about 356.2231300140.

The spelling of 45202905 in words is "forty-five million, two hundred two thousand, nine hundred five".