1928697152 has 28 divisors (see below), whose sum is σ = 3875714880. Its totient is φ = 952139136.

The previous prime is 1928697151. The next prime is 1928697161. The reversal of 1928697152 is 2517968291.

It is a super-2 number, since 2×1928697152² = 7439745408265822208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1928697152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928697151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185678 + ... + 195789.

Almost surely, 2^1928697152 is an apocalyptic number.

It is an amenable number.

1928697152 is an abundant number, since it is smaller than the sum of its proper divisors (1947017728).

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

1928697152 is an equidigital number, since it uses as much as digits as its factorization.

1928697152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381558 (or 381548 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 1928697152 is about 43916.9346835591. The cubic root of 1928697152 is about 1244.7668476268.

The spelling of 1928697152 in words is "one billion, nine hundred twenty-eight million, six hundred ninety-seven thousand, one hundred fifty-two".