620004261 has 16 divisors (see below), whose sum is σ = 864244224. Its totient is φ = 394618224.

The previous prime is 620004251. The next prime is 620004377. The reversal of 620004261 is 162400026.

It is a happy number.

It is not a de Polignac number, because 620004261 - 2⁶ = 620004197 is a prime.

It is a super-2 number, since 2×620004261² = 768810567316312242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620004211) 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, 29530 + ... + 45956.

It is an arithmetic number, because the mean of its divisors is an integer number (54015264).

Almost surely, 2^620004261 is an apocalyptic number.

It is an amenable number.

620004261 is a deficient number, since it is larger than the sum of its proper divisors (244239963).

620004261 is a wasteful number, since it uses less digits than its factorization.

620004261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 620004261 is about 24899.8847587695. The cubic root of 620004261 is about 852.7038517445.

Adding to 620004261 its reverse (162400026), we get a palindrome (782404287).

The spelling of 620004261 in words is "six hundred twenty million, four thousand, two hundred sixty-one".