20375004 has 48 divisors (see below), whose sum is σ = 51524480. Its totient is φ = 6229440.

The previous prime is 20374997. The next prime is 20375009. The reversal of 20375004 is 40057302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20375009) 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, 32607 + ... + 33225.

Almost surely, 2^20375004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20375004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25762240).

20375004 is an abundant number, since it is smaller than the sum of its proper divisors (31149476).

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

20375004 is a wasteful number, since it uses less digits than its factorization.

20375004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20375004 is about 4513.8679643959. The cubic root of 20375004 is about 273.1277964375.

The spelling of 20375004 in words is "twenty million, three hundred seventy-five thousand, four".