242263749 has 32 divisors (see below), whose sum is σ = 398732544. Its totient is φ = 127411200.

The previous prime is 242263739. The next prime is 242263781. The reversal of 242263749 is 947362242.

It is a happy number.

242263749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242263749 - 2⁸ = 242263493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242263739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108367 + ... + 110579.

It is an arithmetic number, because the mean of its divisors is an integer number (12460392).

Almost surely, 2^242263749 is an apocalyptic number.

It is an amenable number.

242263749 is a deficient number, since it is larger than the sum of its proper divisors (156468795).

242263749 is a wasteful number, since it uses less digits than its factorization.

242263749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637.

The product of its digits is 145152, while the sum is 39.

The square root of 242263749 is about 15564.8240915212. The cubic root of 242263749 is about 623.3942773271.

The spelling of 242263749 in words is "two hundred forty-two million, two hundred sixty-three thousand, seven hundred forty-nine".