1940468400 has 600 divisors, whose sum is σ = 7970364864. Its totient is φ = 447897600.

The previous prime is 1940468381. The next prime is 1940468401. The reversal of 1940468400 is 48640491.

It is a happy number.

1940468400 is a `hidden beast` number, since 194 + 0 + 4 + 68 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

It is a super-2 number, since 2×1940468400² = 7530835222797120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1940468401) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7160265 + ... + 7160535.

Almost surely, 2^1940468400 is an apocalyptic number.

1940468400 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 1940468400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3985182432).

1940468400 is an abundant number, since it is smaller than the sum of its proper divisors (6029896464).

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

1940468400 is a wasteful number, since it uses less digits than its factorization.

1940468400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1940468400 is about 44050.7480072700. The cubic root of 1940468400 is about 1247.2940719227.

The spelling of 1940468400 in words is "one billion, nine hundred forty million, four hundred sixty-eight thousand, four hundred".