2928402945 has 24 divisors (see below), whose sum is σ = 5466353256. Its totient is φ = 1441675008.

The previous prime is 2928402943. The next prime is 2928402979. The reversal of 2928402945 is 5492048292.

It can be written as a sum of positive squares in 4 ways, for example, as 96353856 + 2832049089 = 9816^2 + 53217^2 .

It is not a de Polignac number, because 2928402945 - 2¹ = 2928402943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2928402945.

It is not an unprimeable number, because it can be changed into a prime (2928402943) 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, 2502324 + ... + 2503493.

It is an arithmetic number, because the mean of its divisors is an integer number (227764719).

Almost surely, 2^2928402945 is an apocalyptic number.

It is an amenable number.

2928402945 is a deficient number, since it is larger than the sum of its proper divisors (2537950311).

2928402945 is a wasteful number, since it uses less digits than its factorization.

2928402945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005841 (or 5005838 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2928402945 is about 54114.7202247226. The cubic root of 2928402945 is about 1430.6836421793.

The spelling of 2928402945 in words is "two billion, nine hundred twenty-eight million, four hundred two thousand, nine hundred forty-five".