4040120312 has 32 divisors (see below), whose sum is σ = 8036722800. Its totient is φ = 1897465344.

The previous prime is 4040120281. The next prime is 4040120321. The reversal of 4040120312 is 2130210404.

It is a super-4 number, since 4×4040120312⁴ (a number of 40 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 40043 + ... + 98405.

Almost surely, 2^4040120312 is an apocalyptic number.

It is an amenable number.

4040120312 is a deficient number, since it is larger than the sum of its proper divisors (3996602488).

4040120312 is a wasteful number, since it uses less digits than its factorization.

4040120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58895 (or 58891 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4040120312 is about 63561.9407507354. The cubic root of 4040120312 is about 1592.6906582584.

Adding to 4040120312 its reverse (2130210404), we get a palindrome (6170330716).

The spelling of 4040120312 in words is "four billion, forty million, one hundred twenty thousand, three hundred twelve".