3155055420 has 96 divisors (see below), whose sum is σ = 9795373056. Its totient is φ = 752313600.

The previous prime is 3155055403. The next prime is 3155055427. The reversal of 3155055420 is 245505513.

It is a happy number.

3155055420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155055427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1077 + ... + 79443.

It is an arithmetic number, because the mean of its divisors is an integer number (102035136).

Almost surely, 2^3155055420 is an apocalyptic number.

3155055420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3155055420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4897686528).

3155055420 is an abundant number, since it is smaller than the sum of its proper divisors (6640317636).

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

3155055420 is a wasteful number, since it uses less digits than its factorization.

3155055420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78451 (or 78449 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 3155055420 is about 56169.8800069931. The cubic root of 3155055420 is about 1466.6809935469.

The spelling of 3155055420 in words is "three billion, one hundred fifty-five million, fifty-five thousand, four hundred twenty".