404646134 has 16 divisors (see below), whose sum is σ = 626838576. Its totient is φ = 195760800.

The previous prime is 404646133. The next prime is 404646139. The reversal of 404646134 is 431646404.

It is a super-2 number, since 2×404646134² = 327476987522291912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404646134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404646133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712 + ... + 28499.

It is an arithmetic number, because the mean of its divisors is an integer number (39177411).

Almost surely, 2^404646134 is an apocalyptic number.

404646134 is a deficient number, since it is larger than the sum of its proper divisors (222192442).

404646134 is a wasteful number, since it uses less digits than its factorization.

404646134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30431.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 404646134 is about 20115.8180047444. The cubic root of 404646134 is about 739.6480759041.

The spelling of 404646134 in words is "four hundred four million, six hundred forty-six thousand, one hundred thirty-four".