3145447340 has 96 divisors (see below), whose sum is σ = 8292049920. Its totient is φ = 977239296.

The previous prime is 3145447337. The next prime is 3145447381. The reversal of 3145447340 is 437445413.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 3145447340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35474 + ... + 86886.

It is an arithmetic number, because the mean of its divisors is an integer number (86375520).

Almost surely, 2^3145447340 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 3145447340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4146024960).

3145447340 is an abundant number, since it is smaller than the sum of its proper divisors (5146602580).

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

3145447340 is a wasteful number, since it uses less digits than its factorization.

3145447340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51471 (or 51469 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 3145447340 is about 56084.2878175341. The cubic root of 3145447340 is about 1465.1906533938.

The spelling of 3145447340 in words is "three billion, one hundred forty-five million, four hundred forty-seven thousand, three hundred forty".