11400531040 has 48 divisors (see below), whose sum is σ = 27862516080. Its totient is φ = 4402961920.

The previous prime is 11400531029. The next prime is 11400531059. The reversal of 11400531040 is 4013500411.

It is a junction number, because it is equal to n+sod(n) for n = 11400530999 and 11400531017.

It is a congruent number.

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, 1223866 + ... + 1233145.

It is an arithmetic number, because the mean of its divisors is an integer number (580469085).

Almost surely, 2^11400531040 is an apocalyptic number.

11400531040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11400531040 is an abundant number, since it is smaller than the sum of its proper divisors (16461985040).

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

11400531040 is a wasteful number, since it uses less digits than its factorization.

11400531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457055 (or 2457047 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The spelling of 11400531040 in words is "eleven billion, four hundred million, five hundred thirty-one thousand, forty".