20272426 has 16 divisors (see below), whose sum is σ = 30883968. Its totient is φ = 9979200.

The previous prime is 20272403. The next prime is 20272457. The reversal of 20272426 is 62427202.

It is a self number, because there is not a number n which added to its sum of digits gives 20272426.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61081 + ... + 61411.

It is an arithmetic number, because the mean of its divisors is an integer number (1930248).

Almost surely, 2^20272426 is an apocalyptic number.

20272426 is a deficient number, since it is larger than the sum of its proper divisors (10611542).

20272426 is a wasteful number, since it uses less digits than its factorization.

20272426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20272426 is about 4502.4910882755. The cubic root of 20272426 is about 272.6686709308.

Adding to 20272426 its reverse (62427202), we get a palindrome (82699628).

The spelling of 20272426 in words is "twenty million, two hundred seventy-two thousand, four hundred twenty-six".