3155421740 has 12 divisors (see below), whose sum is σ = 6626385696. Its totient is φ = 1262168688.

The previous prime is 3155421739. The next prime is 3155421817. The reversal of 3155421740 is 471245513.

3155421740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3155421697 and 3155421706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78885524 + ... + 78885563.

It is an arithmetic number, because the mean of its divisors is an integer number (552198808).

Almost surely, 2^3155421740 is an apocalyptic number.

It is an amenable number.

3155421740 is an abundant number, since it is smaller than the sum of its proper divisors (3470963956).

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

3155421740 is a wasteful number, since it uses less digits than its factorization.

3155421740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157771096 (or 157771094 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 3155421740 is about 56173.1407346963. The cubic root of 3155421740 is about 1466.7377547040.

The spelling of 3155421740 in words is "three billion, one hundred fifty-five million, four hundred twenty-one thousand, seven hundred forty".