7242391742 has 4 divisors (see below), whose sum is σ = 10863587616. Its totient is φ = 3621195870.

The previous prime is 7242391721. The next prime is 7242391759. The reversal of 7242391742 is 2471932427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2471932427 = 30389 ⋅81343.

It is a self number, because there is not a number n which added to its sum of digits gives 7242391742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810597934 + ... + 1810597937.

It is an arithmetic number, because the mean of its divisors is an integer number (2715896904).

Almost surely, 2^7242391742 is an apocalyptic number.

7242391742 is a deficient number, since it is larger than the sum of its proper divisors (3621195874).

7242391742 is a wasteful number, since it uses less digits than its factorization.

7242391742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621195873.

The product of its digits is 169344, while the sum is 41.

The square root of 7242391742 is about 85102.2428729114. The cubic root of 7242391742 is about 1934.7610574138.

The spelling of 7242391742 in words is "seven billion, two hundred forty-two million, three hundred ninety-one thousand, seven hundred forty-two".