1934628440 has 32 divisors (see below), whose sum is σ = 4542173280. Its totient is φ = 740205312.

The previous prime is 1934628427. The next prime is 1934628473. The reversal of 1934628440 is 448264391.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 1050509 + ... + 1052348.

It is an arithmetic number, because the mean of its divisors is an integer number (141942915).

Almost surely, 2^1934628440 is an apocalyptic number.

1934628440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1934628440 is an abundant number, since it is smaller than the sum of its proper divisors (2607544840).

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

1934628440 is a wasteful number, since it uses less digits than its factorization.

1934628440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102891 (or 2102887 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 1934628440 is about 43984.4113294699. The cubic root of 1934628440 is about 1246.0415449391.

The spelling of 1934628440 in words is "one billion, nine hundred thirty-four million, six hundred twenty-eight thousand, four hundred forty".