3155404040 has 64 divisors (see below), whose sum is σ = 7447541760. Its totient is φ = 1200897280.

The previous prime is 3155404039. The next prime is 3155404093. The reversal of 3155404040 is 404045513.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166742 + ... + 184698.

It is an arithmetic number, because the mean of its divisors is an integer number (116367840).

Almost surely, 2^3155404040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155404040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3723770880).

3155404040 is an abundant number, since it is smaller than the sum of its proper divisors (4292137720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3155404040 is a wasteful number, since it uses less digits than its factorization.

3155404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182 (or 18178 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 3155404040 is about 56172.9831858697. The cubic root of 3155404040 is about 1466.7350121962.

Adding to 3155404040 its reverse (404045513), we get a palindrome (3559449553).

The spelling of 3155404040 in words is "three billion, one hundred fifty-five million, four hundred four thousand, forty".