45540890 has 16 divisors (see below), whose sum is σ = 82080000. Its totient is φ = 18192720.

The previous prime is 45540889. The next prime is 45540899. The reversal of 45540890 is 9804554.

It is a self number, because there is not a number n which added to its sum of digits gives 45540890.

It is not an unprimeable number, because it can be changed into a prime (45540899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6611 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (5130000).

Almost surely, 2^45540890 is an apocalyptic number.

45540890 is a deficient number, since it is larger than the sum of its proper divisors (36539110).

45540890 is a wasteful number, since it uses less digits than its factorization.

45540890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 45540890 is about 6748.3990694090. The cubic root of 45540890 is about 357.1087607068.

The spelling of 45540890 in words is "forty-five million, five hundred forty thousand, eight hundred ninety".