1902998 has 8 divisors (see below), whose sum is σ = 2886840. Its totient is φ = 940720.

The previous prime is 1902991. The next prime is 1903003. The reversal of 1902998 is 8992091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902991) 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, 5168 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (360855).

2^1902998 is an apocalyptic number.

1902998 is a deficient number, since it is larger than the sum of its proper divisors (983842).

1902998 is a wasteful number, since it uses less digits than its factorization.

1902998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10782.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1902998 is about 1379.4919354603. The cubic root of 1902998 is about 123.9213427623.

The spelling of 1902998 in words is "one million, nine hundred two thousand, nine hundred ninety-eight".