20012029 has 4 divisors (see below), whose sum is σ = 20310784. Its totient is φ = 19713276.

The previous prime is 20012023. The next prime is 20012053. The reversal of 20012029 is 92021002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20012029 - 2¹¹ = 20009981 is a prime.

It is a super-3 number, since 3×20012029³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149277 + ... + 149410.

It is an arithmetic number, because the mean of its divisors is an integer number (5077696).

Almost surely, 2^20012029 is an apocalyptic number.

It is an amenable number.

20012029 is a deficient number, since it is larger than the sum of its proper divisors (298755).

20012029 is an equidigital number, since it uses as much as digits as its factorization.

20012029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298754.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 20012029 is about 4473.4806359255. The cubic root of 20012029 is about 271.4961703021.

The spelling of 20012029 in words is "twenty million, twelve thousand, twenty-nine".