1202240142 has 24 divisors (see below), whose sum is σ = 2605562544. Its totient is φ = 400637664.

The previous prime is 1202240113. The next prime is 1202240173. The reversal of 1202240142 is 2410422021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85503 + ... + 98565.

It is an arithmetic number, because the mean of its divisors is an integer number (108565106).

Almost surely, 2^1202240142 is an apocalyptic number.

1202240142 is an abundant number, since it is smaller than the sum of its proper divisors (1403322402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202240142 is a wasteful number, since it uses less digits than its factorization.

1202240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18184 (or 18181 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1202240142 is about 34673.3347401141. The cubic root of 1202240142 is about 1063.3194098296.

Adding to 1202240142 its reverse (2410422021), we get a palindrome (3612662163).

The spelling of 1202240142 in words is "one billion, two hundred two million, two hundred forty thousand, one hundred forty-two".