20607004 has 24 divisors (see below), whose sum is σ = 39731328. Its totient is φ = 9273840.

The previous prime is 20606987. The next prime is 20607007. The reversal of 20607004 is 40070602.

It is a super-2 number, since 2×20607004² = 849297227712032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2259 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (1655472).

Almost surely, 2^20607004 is an apocalyptic number.

It is an amenable number.

20607004 is a deficient number, since it is larger than the sum of its proper divisors (19124324).

20607004 is a wasteful number, since it uses less digits than its factorization.

20607004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665 (or 4663 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20607004 is about 4539.4938043795. The cubic root of 20607004 is about 274.1605431365.

Adding to 20607004 its reverse (40070602), we get a palindrome (60677606).

The spelling of 20607004 in words is "twenty million, six hundred seven thousand, four".