102207442 has 16 divisors (see below), whose sum is σ = 154791000. Its totient is φ = 50613120.

The previous prime is 102207437. The next prime is 102207461. The reversal of 102207442 is 244702201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87067561 + 15139881 = 9331^2 + 3891^2 .

It is a super-2 number, since 2×102207442² = 20892722400366728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125934 + ... + 126742.

Almost surely, 2^102207442 is an apocalyptic number.

102207442 is a deficient number, since it is larger than the sum of its proper divisors (52583558).

102207442 is a wasteful number, since it uses less digits than its factorization.

102207442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 102207442 is about 10109.7696314011. The cubic root of 102207442 is about 467.5494025404.

Adding to 102207442 its reverse (244702201), we get a palindrome (346909643).

The spelling of 102207442 in words is "one hundred two million, two hundred seven thousand, four hundred forty-two".