3102145440 has 48 divisors (see below), whose sum is σ = 9771759648. Its totient is φ = 827238656.

The previous prime is 3102145393. The next prime is 3102145469. The reversal of 3102145440 is 445412013.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3102145440.

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, 3230922 + ... + 3231881.

It is an arithmetic number, because the mean of its divisors is an integer number (203578326).

Almost surely, 2^3102145440 is an apocalyptic number.

3102145440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3102145440 is an abundant number, since it is smaller than the sum of its proper divisors (6669614208).

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

3102145440 is a wasteful number, since it uses less digits than its factorization.

3102145440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462821 (or 6462813 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3102145440 is about 55696.9069159141. The cubic root of 3102145440 is about 1458.4360308920.

Adding to 3102145440 its reverse (445412013), we get a palindrome (3547557453).

The spelling of 3102145440 in words is "three billion, one hundred two million, one hundred forty-five thousand, four hundred forty".