1652978964 has 48 divisors (see below), whose sum is σ = 4747019648. Its totient is φ = 435950208.

The previous prime is 1652978923. The next prime is 1652979007. The reversal of 1652978964 is 4698792561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755767 + ... + 757950.

Almost surely, 2^1652978964 is an apocalyptic number.

1652978964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1652978964 is an abundant number, since it is smaller than the sum of its proper divisors (3094040684).

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

1652978964 is a wasteful number, since it uses less digits than its factorization.

1652978964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513744 (or 1513742 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 1652978964 is about 40656.8439995039. The cubic root of 1652978964 is about 1182.3764622644.

The spelling of 1652978964 in words is "one billion, six hundred fifty-two million, nine hundred seventy-eight thousand, nine hundred sixty-four".