19948158 has 24 divisors (see below), whose sum is σ = 43446000. Its totient is φ = 6614784.

The previous prime is 19948141. The next prime is 19948169. The reversal of 19948158 is 85184991.

It is a Curzon number.

It is a congruent 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, 798 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (1810250).

Almost surely, 2^19948158 is an apocalyptic number.

19948158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19948158 is an abundant number, since it is smaller than the sum of its proper divisors (23497842).

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

19948158 is a wasteful number, since it uses less digits than its factorization.

19948158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776 (or 5773 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 19948158 is about 4466.3360822939. The cubic root of 19948158 is about 271.2070239912.

The spelling of 19948158 in words is "nineteen million, nine hundred forty-eight thousand, one hundred fifty-eight".