45231351240 has 128 divisors (see below), whose sum is σ = 143835471360. Its totient is φ = 11339587584.

The previous prime is 45231351233. The next prime is 45231351259. The reversal of 45231351240 is 4215313254.

It is a super-3 number, since 3×45231351240³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45231351198 and 45231351207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1899649 + ... + 1923311.

It is an arithmetic number, because the mean of its divisors is an integer number (1123714620).

Almost surely, 2^45231351240 is an apocalyptic number.

45231351240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45231351240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71917735680).

45231351240 is an abundant number, since it is smaller than the sum of its proper divisors (98604120120).

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

45231351240 is a wasteful number, since it uses less digits than its factorization.

45231351240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24631 (or 24627 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 45231351240 its reverse (4215313254), we get a palindrome (49446664494).

The spelling of 45231351240 in words is "forty-five billion, two hundred thirty-one million, three hundred fifty-one thousand, two hundred forty".