20607290 has 16 divisors (see below), whose sum is σ = 40465440. Its totient is φ = 7493520.

The previous prime is 20607271. The next prime is 20607311. The reversal of 20607290 is 9270602.

It is a super-2 number, since 2×20607290² = 849320802288200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93560 + ... + 93779.

It is an arithmetic number, because the mean of its divisors is an integer number (2529090).

Almost surely, 2^20607290 is an apocalyptic number.

20607290 is a deficient number, since it is larger than the sum of its proper divisors (19858150).

20607290 is a wasteful number, since it uses less digits than its factorization.

20607290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187357.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20607290 is about 4539.5253055799. The cubic root of 20607290 is about 274.1618114683.

Adding to 20607290 its reverse (9270602), we get a palindrome (29877892).

The spelling of 20607290 in words is "twenty million, six hundred seven thousand, two hundred ninety".