621040126 has 8 divisors (see below), whose sum is σ = 1064640240. Its totient is φ = 266160048.

The previous prime is 621040111. The next prime is 621040139.

621040126 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 621040097 and 621040106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22179991 + ... + 22180018.

It is an arithmetic number, because the mean of its divisors is an integer number (133080030).

Almost surely, 2^621040126 is an apocalyptic number.

621040126 is a deficient number, since it is larger than the sum of its proper divisors (443600114).

621040126 is a wasteful number, since it uses less digits than its factorization.

621040126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44360018.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 621040126 is about 24920.6766762060. The cubic root of 621040126 is about 853.1784692451.

The spelling of 621040126 in words is "six hundred twenty-one million, forty thousand, one hundred twenty-six".