21241098 has 24 divisors (see below), whose sum is σ = 48024288. Its totient is φ = 6772392.

The previous prime is 21241093. The next prime is 21241123. The reversal of 21241098 is 89014212.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21241091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25240 + ... + 26067.

It is an arithmetic number, because the mean of its divisors is an integer number (2001012).

Almost surely, 2^21241098 is an apocalyptic number.

21241098 is an abundant number, since it is smaller than the sum of its proper divisors (26783190).

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

21241098 is a wasteful number, since it uses less digits than its factorization.

21241098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51338 (or 51335 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 21241098 is about 4608.8065700352. The cubic root of 21241098 is about 276.9442297588.

It can be divided in two parts, 2 and 1241098, that added together give a triangular number (1241100 = T₁₅₇₅).

The spelling of 21241098 in words is "twenty-one million, two hundred forty-one thousand, ninety-eight".