742973819 has 6 divisors (see below), whose sum is σ = 864275724. Its totient is φ = 636834660.

The previous prime is 742973813. The next prime is 742973837. The reversal of 742973819 is 918379247.

742973819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-742973819 is a prime.

It is a super-2 number, since 2×742973819² = 1104020191438889522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742973813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7581317 + ... + 7581414.

It is an arithmetic number, because the mean of its divisors is an integer number (144045954).

Almost surely, 2^742973819 is an apocalyptic number.

742973819 is a deficient number, since it is larger than the sum of its proper divisors (121301905).

742973819 is a wasteful number, since it uses less digits than its factorization.

742973819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162745 (or 15162738 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 742973819 is about 27257.5460927795. The cubic root of 742973819 is about 905.7141861026.

The spelling of 742973819 in words is "seven hundred forty-two million, nine hundred seventy-three thousand, eight hundred nineteen".