43440724550040 has 32 divisors (see below), whose sum is σ = 130322173650480. Its totient is φ = 11584193213312.

The previous prime is 43440724550021. The next prime is 43440724550057. The reversal of 43440724550040 is 4005542704434.

It is a happy number.

It is a super-3 number, since 3×43440724550040³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43440724549974 and 43440724550001.

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, 181003018839 + ... + 181003019078.

Almost surely, 2^{43440724550040} is an apocalyptic number.

43440724550040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43440724550040 is an abundant number, since it is smaller than the sum of its proper divisors (86881449100440).

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

43440724550040 is a wasteful number, since it uses less digits than its factorization.

43440724550040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362006037931 (or 362006037927 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 42.

The spelling of 43440724550040 in words is "forty-three trillion, four hundred forty billion, seven hundred twenty-four million, five hundred fifty thousand, forty".