20373406 has 4 divisors (see below), whose sum is σ = 30560112. Its totient is φ = 10186702.

The previous prime is 20373403. The next prime is 20373449. The reversal of 20373406 is 60437302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20373401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5093350 + ... + 5093353.

It is an arithmetic number, because the mean of its divisors is an integer number (7640028).

Almost surely, 2^20373406 is an apocalyptic number.

20373406 is a deficient number, since it is larger than the sum of its proper divisors (10186706).

20373406 is a wasteful number, since it uses less digits than its factorization.

20373406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186705.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20373406 is about 4513.6909508738. The cubic root of 20373406 is about 273.1206558314.

It can be divided in two parts, 2037340 and 6, that multiplied together give a triangular number (12224040 = T₄₉₄₄).

The spelling of 20373406 in words is "twenty million, three hundred seventy-three thousand, four hundred six".