742221235 has 16 divisors (see below), whose sum is σ = 1019577600. Its totient is φ = 508114656.

The previous prime is 742221217. The next prime is 742221253. The reversal of 742221235 is 532122247.

It is an interprime number because it is at equal distance from previous prime (742221217) and next prime (742221253).

It is not a de Polignac number, because 742221235 - 2¹⁹ = 741696947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536 + ... + 38794.

It is an arithmetic number, because the mean of its divisors is an integer number (63723600).

Almost surely, 2^742221235 is an apocalyptic number.

742221235 is a deficient number, since it is larger than the sum of its proper divisors (277356365).

742221235 is a wasteful number, since it uses less digits than its factorization.

742221235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34890.

The product of its digits is 6720, while the sum is 28.

The square root of 742221235 is about 27243.7375372763. The cubic root of 742221235 is about 905.4082729982.

It can be divided in two parts, 7422212 and 35, that added together give a palindrome (7422247).

The spelling of 742221235 in words is "seven hundred forty-two million, two hundred twenty-one thousand, two hundred thirty-five".