742189648 has 10 divisors (see below), whose sum is σ = 1437992474. Its totient is φ = 371094816.

The previous prime is 742189633. The next prime is 742189649. The reversal of 742189648 is 846981247.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 469675584 + 272514064 = 21672^2 + 16508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742189649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23193411 + ... + 23193442.

Almost surely, 2^742189648 is an apocalyptic number.

It is an amenable number.

742189648 is a deficient number, since it is larger than the sum of its proper divisors (695802826).

742189648 is a wasteful number, since it uses less digits than its factorization.

742189648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46386861 (or 46386855 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 742189648 is about 27243.1578199004. The cubic root of 742189648 is about 905.3954288778.

The spelling of 742189648 in words is "seven hundred forty-two million, one hundred eighty-nine thousand, six hundred forty-eight".