2098458 has 24 divisors (see below), whose sum is σ = 4611828. Its totient is φ = 689472.

The previous prime is 2098441. The next prime is 2098471. The reversal of 2098458 is 8548902.

It can be written as a sum of positive squares in 2 ways, for example, as 2064969 + 33489 = 1437^2 + 183^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516 + ... + 2112.

2^2098458 is an apocalyptic number.

2098458 is an abundant number, since it is smaller than the sum of its proper divisors (2513370).

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

2098458 is a wasteful number, since it uses less digits than its factorization.

2098458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2098458 is about 1448.6055363694. The cubic root of 2098458 is about 128.0265651243.

It can be divided in two parts, 2098 and 458, that added together give a triangular number (2556 = T₇₁).

The spelling of 2098458 in words is "two million, ninety-eight thousand, four hundred fifty-eight".