1242062180 has 12 divisors (see below), whose sum is σ = 2608330620. Its totient is φ = 496824864.

The previous prime is 1242062153. The next prime is 1242062189. The reversal of 1242062180 is 812602421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 634636864 + 607425316 = 25192^2 + 24646^2 .

It is not an unprimeable number, because it can be changed into a prime (1242062189) 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, 31051535 + ... + 31051574.

It is an arithmetic number, because the mean of its divisors is an integer number (217360885).

Almost surely, 2^1242062180 is an apocalyptic number.

1242062180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242062180 is an abundant number, since it is smaller than the sum of its proper divisors (1366268440).

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

1242062180 is a wasteful number, since it uses less digits than its factorization.

1242062180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62103118 (or 62103116 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1242062180 is about 35242.9025478890. The cubic root of 1242062180 is about 1074.9322993240.

The spelling of 1242062180 in words is "one billion, two hundred forty-two million, sixty-two thousand, one hundred eighty".