2758998 has 32 divisors (see below), whose sum is σ = 6376320. Its totient is φ = 786560.

The previous prime is 2758963. The next prime is 2758999. The reversal of 2758998 is 8998572.

It is a happy number.

It is a super-2 number, since 2×2758998² = 15224139928008, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2758999) 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, 108 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (199260).

2^2758998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2758998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3188160).

2758998 is an abundant number, since it is smaller than the sum of its proper divisors (3617322).

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

2758998 is a wasteful number, since it uses less digits than its factorization.

2758998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492.

The product of its digits is 362880, while the sum is 48.

The square root of 2758998 is about 1661.0231786462. The cubic root of 2758998 is about 140.2546047211.

The spelling of 2758998 in words is "two million, seven hundred fifty-eight thousand, nine hundred ninety-eight".