20208070 has 32 divisors (see below), whose sum is σ = 39852000. Its totient is φ = 7343616.

The previous prime is 20208061. The next prime is 20208101. The reversal of 20208070 is 7080202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2881 + ... + 6979.

It is an arithmetic number, because the mean of its divisors is an integer number (1245375).

Almost surely, 2^20208070 is an apocalyptic number.

20208070 is a deficient number, since it is larger than the sum of its proper divisors (19643930).

20208070 is a wasteful number, since it uses less digits than its factorization.

20208070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20208070 is about 4495.3386969171. The cubic root of 20208070 is about 272.3798308628.

Adding to 20208070 its reverse (7080202), we get a palindrome (27288272).

The spelling of 20208070 in words is "twenty million, two hundred eight thousand, seventy".