1928542040 has 16 divisors (see below), whose sum is σ = 4339219680. Its totient is φ = 771416800.

The previous prime is 1928541977. The next prime is 1928542043. The reversal of 1928542040 is 402458291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928542043) 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, 24106736 + ... + 24106815.

It is an arithmetic number, because the mean of its divisors is an integer number (271201230).

Almost surely, 2^1928542040 is an apocalyptic number.

1928542040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928542040 is an abundant number, since it is smaller than the sum of its proper divisors (2410677640).

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

1928542040 is a wasteful number, since it uses less digits than its factorization.

1928542040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48213562 (or 48213558 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1928542040 is about 43915.1686778043. The cubic root of 1928542040 is about 1244.7334773538.

The spelling of 1928542040 in words is "one billion, nine hundred twenty-eight million, five hundred forty-two thousand, forty".