7740529442 has 8 divisors (see below), whose sum is σ = 11621267100. Its totient is φ = 3866773744.

The previous prime is 7740529427. The next prime is 7740529483. The reversal of 7740529442 is 2449250477.

It can be written as a sum of positive squares in 2 ways, for example, as 7012555081 + 727974361 = 83741^2 + 26981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7740529393 and 7740529402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742717 + ... + 1747152.

Almost surely, 2^7740529442 is an apocalyptic number.

7740529442 is a deficient number, since it is larger than the sum of its proper divisors (3880737658).

7740529442 is a wasteful number, since it uses less digits than its factorization.

7740529442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490980.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 7740529442 is about 87980.2787106292. The cubic root of 7740529442 is about 1978.1393807376.

The spelling of 7740529442 in words is "seven billion, seven hundred forty million, five hundred twenty-nine thousand, four hundred forty-two".