20654070 has 32 divisors (see below), whose sum is σ = 49690368. Its totient is φ = 5494368.

The previous prime is 20654063. The next prime is 20654077. The reversal of 20654070 is 7045602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20654063) and next prime (20654077).

It is a self number, because there is not a number n which added to its sum of digits gives 20654070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20654077) 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, 21337 + ... + 22283.

It is an arithmetic number, because the mean of its divisors is an integer number (1552824).

Almost surely, 2^20654070 is an apocalyptic number.

20654070 is an abundant number, since it is smaller than the sum of its proper divisors (29036298).

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

20654070 is a wasteful number, since it uses less digits than its factorization.

20654070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20654070 is about 4544.6749058651. The cubic root of 20654070 is about 274.3691102283.

Adding to 20654070 its reverse (7045602), we get a palindrome (27699672).

The spelling of 20654070 in words is "twenty million, six hundred fifty-four thousand, seventy".