4040123402 has 24 divisors (see below), whose sum is σ = 7062584544. Its totient is φ = 1728293112.

The previous prime is 4040123369. The next prime is 4040123413. The reversal of 4040123402 is 2043210404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15923 + ... + 91289.

It is an arithmetic number, because the mean of its divisors is an integer number (294274356).

Almost surely, 2^4040123402 is an apocalyptic number.

4040123402 is a deficient number, since it is larger than the sum of its proper divisors (3022461142).

4040123402 is a wasteful number, since it uses less digits than its factorization.

4040123402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75930 (or 75923 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4040123402 is about 63561.9650577293. The cubic root of 4040123402 is about 1592.6910643034.

Adding to 4040123402 its reverse (2043210404), we get a palindrome (6083333806).

The spelling of 4040123402 in words is "four billion, forty million, one hundred twenty-three thousand, four hundred two".