45205646 has 4 divisors (see below), whose sum is σ = 67808472. Its totient is φ = 22602822.

The previous prime is 45205631. The next prime is 45205673. The reversal of 45205646 is 64650254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64650254 = 2 ⋅32325127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11301410 + ... + 11301413.

It is an arithmetic number, because the mean of its divisors is an integer number (16952118).

Almost surely, 2^45205646 is an apocalyptic number.

45205646 is a deficient number, since it is larger than the sum of its proper divisors (22602826).

45205646 is a wasteful number, since it uses less digits than its factorization.

45205646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22602825.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 45205646 is about 6723.5144084028. The cubic root of 45205646 is about 356.2303300518.

The spelling of 45205646 in words is "forty-five million, two hundred five thousand, six hundred forty-six".