1928862040 has 32 divisors (see below), whose sum is σ = 4959931680. Its totient is φ = 661324032.

The previous prime is 1928862037. The next prime is 1928862049. The reversal of 1928862040 is 402688291.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1928861984 and 1928862002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928862049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3444117 + ... + 3444676.

It is an arithmetic number, because the mean of its divisors is an integer number (154997865).

Almost surely, 2^1928862040 is an apocalyptic number.

1928862040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928862040 is an abundant number, since it is smaller than the sum of its proper divisors (3031069640).

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

1928862040 is a wasteful number, since it uses less digits than its factorization.

1928862040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888811 (or 6888807 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1928862040 is about 43918.8119147137. The cubic root of 1928862040 is about 1244.8023191136.

The spelling of 1928862040 in words is "one billion, nine hundred twenty-eight million, eight hundred sixty-two thousand, forty".