1902338740 has 24 divisors (see below), whose sum is σ = 4168604160. Its totient is φ = 727851168.

The previous prime is 1902338731. The next prime is 1902338887. The reversal of 1902338740 is 478332091.

It is a self number, because there is not a number n which added to its sum of digits gives 1902338740.

It is a congruent number.

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, 2067300 + ... + 2068219.

It is an arithmetic number, because the mean of its divisors is an integer number (173691840).

Almost surely, 2^1902338740 is an apocalyptic number.

1902338740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1902338740 is an abundant number, since it is smaller than the sum of its proper divisors (2266265420).

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

1902338740 is a wasteful number, since it uses less digits than its factorization.

1902338740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135551 (or 4135549 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1902338740 is about 43615.8083726531. The cubic root of 1902338740 is about 1239.0703099028.

The spelling of 1902338740 in words is "one billion, nine hundred two million, three hundred thirty-eight thousand, seven hundred forty".