202240442 has 4 divisors (see below), whose sum is σ = 303360666. Its totient is φ = 101120220.

The previous prime is 202240433. The next prime is 202240463. The reversal of 202240442 is 244042202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244042202 = 2 ⋅122021101.

It can be written as a sum of positive squares in only one way, i.e., 139972561 + 62267881 = 11831^2 + 7891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560109 + ... + 50560112.

Almost surely, 2^202240442 is an apocalyptic number.

202240442 is a deficient number, since it is larger than the sum of its proper divisors (101120224).

202240442 is a wasteful number, since it uses less digits than its factorization.

202240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101120223.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 202240442 is about 14221.1266079731. The cubic root of 202240442 is about 586.9791413174.

Adding to 202240442 its reverse (244042202), we get a palindrome (446282644).

The spelling of 202240442 in words is "two hundred two million, two hundred forty thousand, four hundred forty-two".