406439412 has 24 divisors (see below), whose sum is σ = 998272800. Its totient is φ = 128349216.

The previous prime is 406439333. The next prime is 406439441. The reversal of 406439412 is 214934604.

It is a congruent number.

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, 891087 + ... + 891542.

It is an arithmetic number, because the mean of its divisors is an integer number (41594700).

Almost surely, 2^406439412 is an apocalyptic number.

It is an amenable number.

406439412 is an abundant number, since it is smaller than the sum of its proper divisors (591833388).

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

406439412 is a wasteful number, since it uses less digits than its factorization.

406439412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782655 (or 1782653 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 406439412 is about 20160.3425566135. The cubic root of 406439412 is about 740.7391032802.

The spelling of 406439412 in words is "four hundred six million, four hundred thirty-nine thousand, four hundred twelve".