742021347 has 32 divisors (see below), whose sum is σ = 1069228800. Its totient is φ = 456720768.

The previous prime is 742021339. The next prime is 742021349. The reversal of 742021347 is 743120247.

742021347 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 742021347 - 2³ = 742021339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742021349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187968 + ... + 191874.

It is an arithmetic number, because the mean of its divisors is an integer number (33413400).

Almost surely, 2^742021347 is an apocalyptic number.

742021347 is a deficient number, since it is larger than the sum of its proper divisors (327207453).

742021347 is a wasteful number, since it uses less digits than its factorization.

742021347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 742021347 is about 27240.0687774462. The cubic root of 742021347 is about 905.3269870378.

The spelling of 742021347 in words is "seven hundred forty-two million, twenty-one thousand, three hundred forty-seven".