742826626 has 4 divisors (see below), whose sum is σ = 1114239942. Its totient is φ = 371413312.

The previous prime is 742826621. The next prime is 742826629. The reversal of 742826626 is 626628247.

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

It can be written as a sum of positive squares in only one way, i.e., 538193601 + 204633025 = 23199^2 + 14305^2 .

It is not an unprimeable number, because it can be changed into a prime (742826621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185706655 + ... + 185706658.

Almost surely, 2^742826626 is an apocalyptic number.

742826626 is a deficient number, since it is larger than the sum of its proper divisors (371413316).

742826626 is a wasteful number, since it uses less digits than its factorization.

742826626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371413315.

The product of its digits is 387072, while the sum is 43.

The square root of 742826626 is about 27254.8459177446. The cubic root of 742826626 is about 905.6543708082.

It can be divided in two parts, 74282 and 6626, that added together give a palindrome (80908).

The spelling of 742826626 in words is "seven hundred forty-two million, eight hundred twenty-six thousand, six hundred twenty-six".