1940943480 has 256 divisors, whose sum is σ = 7232716800. Its totient is φ = 406632960.

The previous prime is 1940943467. The next prime is 1940943509. The reversal of 1940943480 is 843490491.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 492799 + ... + 496721.

It is an arithmetic number, because the mean of its divisors is an integer number (28252800).

Almost surely, 2^1940943480 is an apocalyptic number.

1940943480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940943480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3616358400).

1940943480 is an abundant number, since it is smaller than the sum of its proper divisors (5291773320).

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

1940943480 is a wasteful number, since it uses less digits than its factorization.

1940943480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994 (or 3990 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1940943480 is about 44056.1400942025. The cubic root of 1940943480 is about 1247.3958542407.

The spelling of 1940943480 in words is "one billion, nine hundred forty million, nine hundred forty-three thousand, four hundred eighty".