45531015240 has 32 divisors (see below), whose sum is σ = 136593046080. Its totient is φ = 12141604032.

The previous prime is 45531015191. The next prime is 45531015259. The reversal of 45531015240 is 4251013554.

It is a super-2 number, since 2×45531015240² (a number of 22 digits) contains 22 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 = 45531015198 and 45531015207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189712444 + ... + 189712683.

It is an arithmetic number, because the mean of its divisors is an integer number (4268532690).

Almost surely, 2^45531015240 is an apocalyptic number.

45531015240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45531015240 is an abundant number, since it is smaller than the sum of its proper divisors (91062030840).

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

45531015240 is a wasteful number, since it uses less digits than its factorization.

45531015240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379425141 (or 379425137 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 45531015240 its reverse (4251013554), we get a palindrome (49782028794).

The spelling of 45531015240 in words is "forty-five billion, five hundred thirty-one million, fifteen thousand, two hundred forty".