406460721042 has 48 divisors (see below), whose sum is σ = 894329504640. Its totient is φ = 133387014816.

The previous prime is 406460721031. The next prime is 406460721061. The reversal of 406460721042 is 240127064604.

406460721042 is a `hidden beast` number, since 4 + 0 + 6 + 4 + 607 + 2 + 1 + 0 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 406460720988 and 406460721006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1992759 + ... + 2187237.

It is an arithmetic number, because the mean of its divisors is an integer number (18631864680).

Almost surely, 2^406460721042 is an apocalyptic number.

406460721042 is an abundant number, since it is smaller than the sum of its proper divisors (487868783598).

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

406460721042 is a wasteful number, since it uses less digits than its factorization.

406460721042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196287 (or 196284 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

Adding to 406460721042 its reverse (240127064604), we get a palindrome (646587785646).

The spelling of 406460721042 in words is "four hundred six billion, four hundred sixty million, seven hundred twenty-one thousand, forty-two".