406426026404 has 24 divisors (see below), whose sum is σ = 714652424640. Its totient is φ = 202241141024.

The previous prime is 406426026343. The next prime is 406426026431. The reversal of 406426026404 is 404620624604.

It is a super-2 number, since 2×406426026404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882422 + ... + 1261554.

It is an arithmetic number, because the mean of its divisors is an integer number (29777184360).

Almost surely, 2^406426026404 is an apocalyptic number.

It is an amenable number.

406426026404 is a deficient number, since it is larger than the sum of its proper divisors (308226398236).

406426026404 is a wasteful number, since it uses less digits than its factorization.

406426026404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380419 (or 380417 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 406426026404 in words is "four hundred six billion, four hundred twenty-six million, twenty-six thousand, four hundred four".