1243250616240 has 240 divisors, whose sum is σ = 4557779116800. Its totient is φ = 314084272896.

The previous prime is 1243250616169. The next prime is 1243250616263. The reversal of 1243250616240 is 426160523421.

1243250616240 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 25 + 0 + 6 + 1 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×1243250616240² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1243250616195 and 1243250616204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1313620 + ... + 2052339.

It is an arithmetic number, because the mean of its divisors is an integer number (18990746320).

Almost surely, 2^{1243250616240} is an apocalyptic number.

1243250616240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243250616240 is an abundant number, since it is smaller than the sum of its proper divisors (3314528500560).

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

1243250616240 is a wasteful number, since it uses less digits than its factorization.

1243250616240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366006 (or 3365988 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 1243250616240 in words is "one trillion, two hundred forty-three billion, two hundred fifty million, six hundred sixteen thousand, two hundred forty".