742774989 has 16 divisors (see below), whose sum is σ = 1081007424. Its totient is φ = 449913600.

The previous prime is 742774939. The next prime is 742775003. The reversal of 742774989 is 989477247.

It is a happy number.

742774989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 742774989 - 2¹³ = 742766797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742774939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65397 + ... + 75909.

It is an arithmetic number, because the mean of its divisors is an integer number (67562964).

Almost surely, 2^742774989 is an apocalyptic number.

It is an amenable number.

742774989 is a deficient number, since it is larger than the sum of its proper divisors (338232435).

742774989 is a wasteful number, since it uses less digits than its factorization.

742774989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12668.

The product of its digits is 7112448, while the sum is 57.

The square root of 742774989 is about 27253.8986018514. The cubic root of 742774989 is about 905.6333850417.

The spelling of 742774989 in words is "seven hundred forty-two million, seven hundred seventy-four thousand, nine hundred eighty-nine".