742812273 has 24 divisors (see below), whose sum is σ = 1241760000. Its totient is φ = 419088384.

The previous prime is 742812253. The next prime is 742812361. The reversal of 742812273 is 372218247.

742812273 is a `hidden beast` number, since 7 + 428 + 1 + 227 + 3 = 666.

It is not a de Polignac number, because 742812273 - 2¹⁶ = 742746737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742812253) 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, 69648 + ... + 79601.

It is an arithmetic number, because the mean of its divisors is an integer number (51740000).

Almost surely, 2^742812273 is an apocalyptic number.

It is an amenable number.

742812273 is a deficient number, since it is larger than the sum of its proper divisors (498947727).

742812273 is a wasteful number, since it uses less digits than its factorization.

742812273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149341 (or 149338 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 742812273 is about 27254.5826054996. The cubic root of 742812273 is about 905.6485377105.

It can be divided in two parts, 7428 and 12273, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 742812273 in words is "seven hundred forty-two million, eight hundred twelve thousand, two hundred seventy-three".