1902109038 has 16 divisors (see below), whose sum is σ = 4004440320. Its totient is φ = 600665976.

The previous prime is 1902109031. The next prime is 1902109081. The reversal of 1902109038 is 8309012091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902109031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8342470 + ... + 8342697.

It is an arithmetic number, because the mean of its divisors is an integer number (250277520).

Almost surely, 2^1902109038 is an apocalyptic number.

1902109038 is an abundant number, since it is smaller than the sum of its proper divisors (2102331282).

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

1902109038 is a wasteful number, since it uses less digits than its factorization.

1902109038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16685191.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1902109038 is about 43613.1750506656. The cubic root of 1902109038 is about 1239.0204364884.

The spelling of 1902109038 in words is "one billion, nine hundred two million, one hundred nine thousand, thirty-eight".