45209240 has 32 divisors (see below), whose sum is σ = 102168000. Its totient is φ = 18004224.

The previous prime is 45209233. The next prime is 45209267. The reversal of 45209240 is 4290254.

45209240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7196 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (3192750).

Almost surely, 2^45209240 is an apocalyptic number.

45209240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45209240 is an abundant number, since it is smaller than the sum of its proper divisors (56958760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45209240 is a wasteful number, since it uses less digits than its factorization.

45209240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 45209240 is about 6723.7816740284. The cubic root of 45209240 is about 356.2397703023.

Adding to 45209240 its reverse (4290254), we get a palindrome (49499494).

The spelling of 45209240 in words is "forty-five million, two hundred nine thousand, two hundred forty".