20158373 has 16 divisors (see below), whose sum is σ = 22356480. Its totient is φ = 18090864.

The previous prime is 20158367. The next prime is 20158399. The reversal of 20158373 is 37385102.

It is a cyclic number.

It is not a de Polignac number, because 20158373 - 2¹⁶ = 20092837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20158363) 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, 71090 + ... + 71372.

It is an arithmetic number, because the mean of its divisors is an integer number (1397280).

Almost surely, 2^20158373 is an apocalyptic number.

20158373 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20158373 is a deficient number, since it is larger than the sum of its proper divisors (2198107).

20158373 is a wasteful number, since it uses less digits than its factorization.

20158373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20158373 is about 4489.8076796228. The cubic root of 20158373 is about 272.1563628420.

The spelling of 20158373 in words is "twenty million, one hundred fifty-eight thousand, three hundred seventy-three".