1940754870 has 32 divisors (see below), whose sum is σ = 5175347040. Its totient is φ = 517534560.

The previous prime is 1940754869. The next prime is 1940754877. The reversal of 1940754870 is 784570491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940754877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3593721 + ... + 3594260.

It is an arithmetic number, because the mean of its divisors is an integer number (161729595).

Almost surely, 2^1940754870 is an apocalyptic number.

1940754870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1940754870 is an abundant number, since it is smaller than the sum of its proper divisors (3234592170).

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

1940754870 is a wasteful number, since it uses less digits than its factorization.

1940754870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187997 (or 7187991 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1940754870 is about 44053.9994779135. Note that the first 3 decimals coincide. The cubic root of 1940754870 is about 1247.3554479545.

The spelling of 1940754870 in words is "one billion, nine hundred forty million, seven hundred fifty-four thousand, eight hundred seventy".