20214004 has 6 divisors (see below), whose sum is σ = 35374514. Its totient is φ = 10107000.

The previous prime is 20214001. The next prime is 20214013. The reversal of 20214004 is 40041202.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 9909904 = 3210^2 + 3148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526747 + ... + 2526754.

Almost surely, 2^20214004 is an apocalyptic number.

It is an amenable number.

20214004 is a deficient number, since it is larger than the sum of its proper divisors (15160510).

20214004 is a wasteful number, since it uses less digits than its factorization.

20214004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053505 (or 5053503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20214004 is about 4495.9986654802. The cubic root of 20214004 is about 272.4064892512.

Adding to 20214004 its reverse (40041202), we get a palindrome (60255206).

The spelling of 20214004 in words is "twenty million, two hundred fourteen thousand, four".