1242408640950 has 48 divisors (see below), whose sum is σ = 3423526036560. Its totient is φ = 331308970560.

The previous prime is 1242408640943. The next prime is 1242408641011. The reversal of 1242408640950 is 590468042421.

It is a happy number.

1242408640950 is a `hidden beast` number, since 124 + 2 + 40 + 86 + 409 + 5 + 0 = 666.

It is a super-2 number, since 2×1242408640950² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1242408640896 and 1242408640905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460149999 + ... + 460152698.

It is an arithmetic number, because the mean of its divisors is an integer number (71323459095).

Almost surely, 2^{1242408640950} is an apocalyptic number.

1242408640950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242408640950 is an abundant number, since it is smaller than the sum of its proper divisors (2181117395610).

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

1242408640950 is a wasteful number, since it uses less digits than its factorization.

1242408640950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920302718 (or 920302707 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 1242408640950 in words is "one trillion, two hundred forty-two billion, four hundred eight million, six hundred forty thousand, nine hundred fifty".