402621105 has 8 divisors (see below), whose sum is σ = 644193792. Its totient is φ = 214731248.

The previous prime is 402621103. The next prime is 402621119. The reversal of 402621105 is 501126204.

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

It is a cyclic number.

It is not a de Polignac number, because 402621105 - 2¹ = 402621103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402621103) 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, 13420689 + ... + 13420718.

It is an arithmetic number, because the mean of its divisors is an integer number (80524224).

Almost surely, 2^402621105 is an apocalyptic number.

It is an amenable number.

402621105 is a deficient number, since it is larger than the sum of its proper divisors (241572687).

402621105 is a wasteful number, since it uses less digits than its factorization.

402621105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26841415.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 402621105 is about 20065.4206285341. The cubic root of 402621105 is about 738.4121694217.

Adding to 402621105 its reverse (501126204), we get a palindrome (903747309).

The spelling of 402621105 in words is "four hundred two million, six hundred twenty-one thousand, one hundred five".