7403400406 has 32 divisors (see below), whose sum is σ = 11327516928. Its totient is φ = 3628532640.

The previous prime is 7403400307. The next prime is 7403400409. The reversal of 7403400406 is 6040043047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7403400409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11513521 + ... + 11514163.

It is an arithmetic number, because the mean of its divisors is an integer number (353984904).

Almost surely, 2^7403400406 is an apocalyptic number.

7403400406 is a deficient number, since it is larger than the sum of its proper divisors (3924116522).

7403400406 is a wasteful number, since it uses less digits than its factorization.

7403400406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 7403400406 is about 86043.0148588484. The cubic root of 7403400406 is about 1948.9935991137.

The spelling of 7403400406 in words is "seven billion, four hundred three million, four hundred thousand, four hundred six".