742690849 has 16 divisors (see below), whose sum is σ = 798154560. Its totient is φ = 688596480.

The previous prime is 742690813. The next prime is 742690853. The reversal of 742690849 is 948096247.

It is a cyclic number.

It is not a de Polignac number, because 742690849 - 2⁷ = 742690721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742690549) 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, 500062 + ... + 501544.

It is an arithmetic number, because the mean of its divisors is an integer number (49884660).

Almost surely, 2^742690849 is an apocalyptic number.

It is an amenable number.

742690849 is a deficient number, since it is larger than the sum of its proper divisors (55463711).

742690849 is a wasteful number, since it uses less digits than its factorization.

742690849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 742690849 is about 27252.3549257674. The cubic root of 742690849 is about 905.5991876641.

The spelling of 742690849 in words is "seven hundred forty-two million, six hundred ninety thousand, eight hundred forty-nine".