20262270 has 32 divisors (see below), whose sum is σ = 55577088. Its totient is φ = 4631328.

The previous prime is 20262257. The next prime is 20262293. The reversal of 20262270 is 7226202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

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, 48034 + ... + 48453.

It is an arithmetic number, because the mean of its divisors is an integer number (1736784).

Almost surely, 2^20262270 is an apocalyptic number.

20262270 is an abundant number, since it is smaller than the sum of its proper divisors (35314818).

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

20262270 is a wasteful number, since it uses less digits than its factorization.

20262270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96504.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20262270 is about 4501.3631268761. The cubic root of 20262270 is about 272.6231298333.

Adding to 20262270 its reverse (7226202), we get a palindrome (27488472).

The spelling of 20262270 in words is "twenty million, two hundred sixty-two thousand, two hundred seventy".