20149026 has 32 divisors (see below), whose sum is σ = 42672960. Its totient is φ = 6331584.

The previous prime is 20149021. The next prime is 20149027. The reversal of 20149026 is 62094102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20148987 and 20149005.

It is not an unprimeable number, because it can be changed into a prime (20149021) 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, 6136 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (1333530).

Almost surely, 2^20149026 is an apocalyptic number.

20149026 is an abundant number, since it is smaller than the sum of its proper divisors (22523934).

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

20149026 is a wasteful number, since it uses less digits than its factorization.

20149026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20149026 is about 4488.7666457503. The cubic root of 20149026 is about 272.1142920063.

The spelling of 20149026 in words is "twenty million, one hundred forty-nine thousand, twenty-six".