20252070 has 24 divisors (see below), whose sum is σ = 52655616. Its totient is φ = 5400528.

The previous prime is 20252053. The next prime is 20252077. The reversal of 20252070 is 7025202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252077) 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 11 ways as a sum of consecutive naturals, for example, 112422 + ... + 112601.

It is an arithmetic number, because the mean of its divisors is an integer number (2193984).

Almost surely, 2^20252070 is an apocalyptic number.

20252070 is an abundant number, since it is smaller than the sum of its proper divisors (32403546).

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

20252070 is a wasteful number, since it uses less digits than its factorization.

20252070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225036 (or 225033 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20252070 is about 4500.2299941225. The cubic root of 20252070 is about 272.5773761136.

Adding to 20252070 its reverse (7025202), we get a palindrome (27277272).

It can be divided in two parts, 2025 and 2070, that added together give a triangular number (4095 = T₉₀).

The spelling of 20252070 in words is "twenty million, two hundred fifty-two thousand, seventy".