396406073 has 16 divisors (see below), whose sum is σ = 461660160. Its totient is φ = 333332496.

The previous prime is 396406069. The next prime is 396406079. The reversal of 396406073 is 370604693.

It is a happy number.

It is not a de Polignac number, because 396406073 - 2² = 396406069 is a prime.

It is a super-3 number, since 3×396406073³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (396406079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364136 + ... + 365222.

It is an arithmetic number, because the mean of its divisors is an integer number (28853760).

Almost surely, 2^396406073 is an apocalyptic number.

It is an amenable number.

396406073 is a deficient number, since it is larger than the sum of its proper divisors (65254087).

396406073 is a wasteful number, since it uses less digits than its factorization.

396406073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 396406073 is about 19909.9490958666. The cubic root of 396406073 is about 734.5929675927.

The spelling of 396406073 in words is "three hundred ninety-six million, four hundred six thousand, seventy-three".