742212782 has 4 divisors (see below), whose sum is σ = 1113319176. Its totient is φ = 371106390.

The previous prime is 742212769. The next prime is 742212787. The reversal of 742212782 is 287212247.

742212782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742212787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185553194 + ... + 185553197.

It is an arithmetic number, because the mean of its divisors is an integer number (278329794).

Almost surely, 2^742212782 is an apocalyptic number.

742212782 is a deficient number, since it is larger than the sum of its proper divisors (371106394).

742212782 is a wasteful number, since it uses less digits than its factorization.

742212782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371106393.

The product of its digits is 25088, while the sum is 35.

The square root of 742212782 is about 27243.5824002645. The cubic root of 742212782 is about 905.4048358177.

The spelling of 742212782 in words is "seven hundred forty-two million, two hundred twelve thousand, seven hundred eighty-two".