742636730 has 16 divisors (see below), whose sum is σ = 1458268704. Its totient is φ = 270049680.

The previous prime is 742636693. The next prime is 742636733. The reversal of 742636730 is 37636247.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (742636733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375512 + ... + 3375731.

It is an arithmetic number, because the mean of its divisors is an integer number (91141794).

Almost surely, 2^742636730 is an apocalyptic number.

742636730 is a deficient number, since it is larger than the sum of its proper divisors (715631974).

742636730 is a wasteful number, since it uses less digits than its factorization.

742636730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751261.

The product of its (nonzero) digits is 127008, while the sum is 38.

The square root of 742636730 is about 27251.3619843119. The cubic root of 742636730 is about 905.5771904840.

The spelling of 742636730 in words is "seven hundred forty-two million, six hundred thirty-six thousand, seven hundred thirty".