1242024319 has 4 divisors (see below), whose sum is σ = 1307394040. Its totient is φ = 1176654600.

The previous prime is 1242024317. The next prime is 1242024347. The reversal of 1242024319 is 9134202421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9134202421 = 31 ⋅294651691.

It is a cyclic number.

It is not a de Polignac number, because 1242024319 - 2¹ = 1242024317 is a prime.

It is a super-2 number, since 2×1242024319² = 3085248817974827522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242024317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32684832 + ... + 32684869.

It is an arithmetic number, because the mean of its divisors is an integer number (326848510).

Almost surely, 2^1242024319 is an apocalyptic number.

1242024319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1242024319 is a deficient number, since it is larger than the sum of its proper divisors (65369721).

1242024319 is an equidigital number, since it uses as much as digits as its factorization.

1242024319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65369720.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1242024319 is about 35242.3654001828. The cubic root of 1242024319 is about 1074.9213770514.

The spelling of 1242024319 in words is "one billion, two hundred forty-two million, twenty-four thousand, three hundred nineteen".