620101026 has 24 divisors (see below), whose sum is σ = 1389882780. Its totient is φ = 199572576.

The previous prime is 620101021. The next prime is 620101039.

It is a happy number.

620101026 is a `hidden beast` number, since 620 + 10 + 10 + 26 = 666.

620101026 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 581051025 + 39050001 = 24105^2 + 6249^2 .

It is a super-3 number, since 3×620101026³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (620101021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593445 + ... + 594488.

Almost surely, 2^620101026 is an apocalyptic number.

620101026 is an abundant number, since it is smaller than the sum of its proper divisors (769781754).

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

620101026 is a wasteful number, since it uses less digits than its factorization.

620101026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187970 (or 1187967 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 620101026 is about 24901.8277642425. The cubic root of 620101026 is about 852.7482103623.

It can be divided in two parts, 62010 and 1026, that added together give a palindrome (63036).

The spelling of 620101026 in words is "six hundred twenty million, one hundred one thousand, twenty-six".