742734905 has 24 divisors (see below), whose sum is σ = 993529152. Its totient is φ = 532532000.

The previous prime is 742734899. The next prime is 742734907. The reversal of 742734905 is 509437247.

It is not a de Polignac number, because 742734905 - 2¹² = 742730809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742734907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34310 + ... + 51600.

It is an arithmetic number, because the mean of its divisors is an integer number (41397048).

Almost surely, 2^742734905 is an apocalyptic number.

It is an amenable number.

742734905 is a deficient number, since it is larger than the sum of its proper divisors (250794247).

742734905 is a wasteful number, since it uses less digits than its factorization.

742734905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389 (or 17378 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 742734905 is about 27253.1632109009. The cubic root of 742734905 is about 905.6170938534.

The spelling of 742734905 in words is "seven hundred forty-two million, seven hundred thirty-four thousand, nine hundred five".