742249066 has 16 divisors (see below), whose sum is σ = 1201171104. Its totient is φ = 341961264.

The previous prime is 742249043. The next prime is 742249073. The reversal of 742249066 is 660942247.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10716 + ... + 39991.

It is an arithmetic number, because the mean of its divisors is an integer number (75073194).

Almost surely, 2^742249066 is an apocalyptic number.

742249066 is a deficient number, since it is larger than the sum of its proper divisors (458922038).

742249066 is a wasteful number, since it uses less digits than its factorization.

742249066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51285.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 742249066 is about 27244.2483104232. The cubic root of 742249066 is about 905.4195895265.

The spelling of 742249066 in words is "seven hundred forty-two million, two hundred forty-nine thousand, sixty-six".