3148640628 has 72 divisors (see below), whose sum is σ = 8553704544. Its totient is φ = 898833600.

The previous prime is 3148640611. The next prime is 3148640629. The reversal of 3148640628 is 8260468413.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 3148640628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3148640629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1304743 + ... + 1307153.

It is an arithmetic number, because the mean of its divisors is an integer number (118801452).

Almost surely, 2^3148640628 is an apocalyptic number.

It is an amenable number.

3148640628 is an abundant number, since it is smaller than the sum of its proper divisors (5405063916).

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

3148640628 is a wasteful number, since it uses less digits than its factorization.

3148640628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4653 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 3148640628 is about 56112.7492464948. The cubic root of 3148640628 is about 1465.6863108532.

The spelling of 3148640628 in words is "three billion, one hundred forty-eight million, six hundred forty thousand, six hundred twenty-eight".