45311032240 has 40 divisors (see below), whose sum is σ = 109928508768. Its totient is φ = 17336394240.

The previous prime is 45311032189. The next prime is 45311032243. The reversal of 45311032240 is 4223011354.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (45311032243) 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, 12310941 + ... + 12314620.

Almost surely, 2^45311032240 is an apocalyptic number.

45311032240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45311032240 is an abundant number, since it is smaller than the sum of its proper divisors (64617476528).

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

45311032240 is a wasteful number, since it uses less digits than its factorization.

45311032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24625597 (or 24625591 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 45311032240 its reverse (4223011354), we get a palindrome (49534043594).

The spelling of 45311032240 in words is "forty-five billion, three hundred eleven million, thirty-two thousand, two hundred forty".