742247241 has 4 divisors (see below), whose sum is σ = 989662992. Its totient is φ = 494831492.

The previous prime is 742247221. The next prime is 742247263. The reversal of 742247241 is 142742247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 742247241 - 2⁷ = 742247113 is a prime.

It is a super-2 number, since 2×742247241² = 1101861933544224162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (742247221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123707871 + ... + 123707876.

It is an arithmetic number, because the mean of its divisors is an integer number (247415748).

Almost surely, 2^742247241 is an apocalyptic number.

It is an amenable number.

742247241 is a deficient number, since it is larger than the sum of its proper divisors (247415751).

742247241 is a wasteful number, since it uses less digits than its factorization.

742247241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247415750.

The product of its digits is 25088, while the sum is 33.

The square root of 742247241 is about 27244.2148170947. The cubic root of 742247241 is about 905.4188474611.

Adding to 742247241 its reverse (142742247), we get a palindrome (884989488).

The spelling of 742247241 in words is "seven hundred forty-two million, two hundred forty-seven thousand, two hundred forty-one".