406305621004002 has 32 divisors (see below), whose sum is σ = 813446628744960. Its totient is φ = 135296026133520.

The previous prime is 406305621003991. The next prime is 406305621004013. The reversal of 406305621004002 is 200400126503604.

It is an interprime number because it is at equal distance from previous prime (406305621003991) and next prime (406305621004013).

It is a super-2 number, since 2×406305621004002² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26074677 + ... + 38632887.

It is an arithmetic number, because the mean of its divisors is an integer number (25420207148280).

Almost surely, 2^{406305621004002} is an apocalyptic number.

406305621004002 is an abundant number, since it is smaller than the sum of its proper divisors (407141007740958).

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

406305621004002 is a wasteful number, since it uses less digits than its factorization.

406305621004002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12563758.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 406305621004002 its reverse (200400126503604), we get a palindrome (606705747507606).

The spelling of 406305621004002 in words is "four hundred six trillion, three hundred five billion, six hundred twenty-one million, four thousand, two".