1242539496 has 96 divisors (see below), whose sum is σ = 3678854400. Its totient is φ = 375736320.

The previous prime is 1242539477. The next prime is 1242539509. The reversal of 1242539496 is 6949352421.

1242539496 is a `hidden beast` number, since 1 + 24 + 2 + 539 + 4 + 96 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 455625 + ... + 458343.

It is an arithmetic number, because the mean of its divisors is an integer number (38321400).

Almost surely, 2^1242539496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242539496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839427200).

1242539496 is an abundant number, since it is smaller than the sum of its proper divisors (2436314904).

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

1242539496 is a wasteful number, since it uses less digits than its factorization.

1242539496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3312 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 1242539496 is about 35249.6737006174. The cubic root of 1242539496 is about 1075.0699780659.

The spelling of 1242539496 in words is "one billion, two hundred forty-two million, five hundred thirty-nine thousand, four hundred ninety-six".