1002112090 has 32 divisors (see below), whose sum is σ = 2182754304. Its totient is φ = 323370240.

The previous prime is 1002112063. The next prime is 1002112091. The reversal of 1002112090 is 902112001.

It is not an unprimeable number, because it can be changed into a prime (1002112091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419866 + ... + 422245.

It is an arithmetic number, because the mean of its divisors is an integer number (68211072).

Almost surely, 2^1002112090 is an apocalyptic number.

1002112090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002112090 is an abundant number, since it is smaller than the sum of its proper divisors (1180642214).

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

1002112090 is a wasteful number, since it uses less digits than its factorization.

1002112090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842142.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1002112090 is about 31656.1540620461. The cubic root of 1002112090 is about 1000.7035349225.

Adding to 1002112090 its reverse (902112001), we get a palindrome (1904224091).

The spelling of 1002112090 in words is "one billion, two million, one hundred twelve thousand, ninety".