20077158 has 16 divisors (see below), whose sum is σ = 40225536. Its totient is φ = 6680520.

The previous prime is 20077151. The next prime is 20077163. The reversal of 20077158 is 85177002.

It is a happy number.

20077158 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20077151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (2514096).

Almost surely, 2^20077158 is an apocalyptic number.

20077158 is an abundant number, since it is smaller than the sum of its proper divisors (20148378).

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

20077158 is a wasteful number, since it uses less digits than its factorization.

20077158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 20077158 is about 4480.7541775911. The cubic root of 20077158 is about 271.7903787905.

The spelling of 20077158 in words is "twenty million, seventy-seven thousand, one hundred fifty-eight".