1553382742 has 8 divisors (see below), whose sum is σ = 2332733616. Its totient is φ = 775804872.

The previous prime is 1553382707. The next prime is 1553382757. The reversal of 1553382742 is 2472833551.

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 = 1553382695 and 1553382704.

It is a congruent number.

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, 441058 + ... + 444565.

It is an arithmetic number, because the mean of its divisors is an integer number (291591702).

Almost surely, 2^1553382742 is an apocalyptic number.

1553382742 is a deficient number, since it is larger than the sum of its proper divisors (779350874).

1553382742 is an equidigital number, since it uses as much as digits as its factorization.

1553382742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886502.

The product of its digits is 201600, while the sum is 40.

The square root of 1553382742 is about 39412.9768223614. The cubic root of 1553382742 is about 1158.1358142147.

The spelling of 1553382742 in words is "one billion, five hundred fifty-three million, three hundred eighty-two thousand, seven hundred forty-two".