624121426 has 8 divisors (see below), whose sum is σ = 939663180. Its totient is φ = 310900368.

The previous prime is 624121423. The next prime is 624121429.

624121426 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (624121423) and next prime (624121429).

It can be written as a sum of positive squares in 2 ways, for example, as 401962401 + 222159025 = 20049^2 + 14905^2 .

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 = 624121394 and 624121403.

It is not an unprimeable number, because it can be changed into a prime (624121423) 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, 579501 + ... + 580576.

Almost surely, 2^624121426 is an apocalyptic number.

624121426 is a deficient number, since it is larger than the sum of its proper divisors (315541754).

624121426 is a wasteful number, since it uses less digits than its factorization.

624121426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160348.

The product of its digits is 4608, while the sum is 28.

The square root of 624121426 is about 24982.4223405177. The cubic root of 624121426 is about 854.5871613614.

The spelling of 624121426 in words is "six hundred twenty-four million, one hundred twenty-one thousand, four hundred twenty-six".