2801998 has 8 divisors (see below), whose sum is σ = 4385808. Its totient is φ = 1340064.

The previous prime is 2801977. The next prime is 2802011. The reversal of 2801998 is 8991082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30411 + ... + 30502.

It is an arithmetic number, because the mean of its divisors is an integer number (548226).

2^2801998 is an apocalyptic number.

2801998 is a deficient number, since it is larger than the sum of its proper divisors (1583810).

2801998 is a wasteful number, since it uses less digits than its factorization.

2801998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60938.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 2801998 is about 1673.9169632930. The cubic root of 2801998 is about 140.9794916771.

It can be divided in two parts, 280 and 1998, that added together give a triangular number (2278 = T₆₇).

The spelling of 2801998 in words is "two million, eight hundred one thousand, nine hundred ninety-eight".