20088351 has 16 divisors (see below), whose sum is σ = 29835520. Its totient is φ = 13358520.

The previous prime is 20088347. The next prime is 20088371. The reversal of 20088351 is 15388002.

It is a happy number.

It is not a de Polignac number, because 20088351 - 2² = 20088347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20088331) 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, 14766 + ... + 16068.

It is an arithmetic number, because the mean of its divisors is an integer number (1864720).

Almost surely, 2^20088351 is an apocalyptic number.

20088351 is a deficient number, since it is larger than the sum of its proper divisors (9747169).

20088351 is a wasteful number, since it uses less digits than its factorization.

20088351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 20088351 is about 4482.0030120472. The cubic root of 20088351 is about 271.8408770492.

Subtracting from 20088351 its sum of digits (27), we obtain a square (20088324 = 4482²).

The spelling of 20088351 in words is "twenty million, eighty-eight thousand, three hundred fifty-one".