1940969492 has 192 divisors, whose sum is σ = 4679700480. Its totient is φ = 681523200.

The previous prime is 1940969483. The next prime is 1940969497. The reversal of 1940969492 is 2949690491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940969497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18844313 + ... + 18844415.

It is an arithmetic number, because the mean of its divisors is an integer number (24373440).

Almost surely, 2^1940969492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940969492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339850240).

1940969492 is an abundant number, since it is smaller than the sum of its proper divisors (2738730988).

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

1940969492 is a wasteful number, since it uses less digits than its factorization.

1940969492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 1940969492 is about 44056.4353074554. The cubic root of 1940969492 is about 1247.4014266366.

The spelling of 1940969492 in words is "one billion, nine hundred forty million, nine hundred sixty-nine thousand, four hundred ninety-two".