1994364450 has 192 divisors, whose sum is σ = 6230851200. Its totient is φ = 465004800.

The previous prime is 1994364443. The next prime is 1994364451. The reversal of 1994364450 is 544634991.

1994364450 is a `hidden beast` number, since 199 + 4 + 3 + 6 + 4 + 450 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1994364396 and 1994364405.

It is not an unprimeable number, because it can be changed into a prime (1994364451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 330460 + ... + 336440.

It is an arithmetic number, because the mean of its divisors is an integer number (32452350).

Almost surely, 2^1994364450 is an apocalyptic number.

1994364450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994364450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3115425600).

1994364450 is an abundant number, since it is smaller than the sum of its proper divisors (4236486750).

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

1994364450 is a wasteful number, since it uses less digits than its factorization.

1994364450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6034 (or 6023 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 1994364450 is about 44658.3077377547. The cubic root of 1994364450 is about 1258.7365452960.

The spelling of 1994364450 in words is "one billion, nine hundred ninety-four million, three hundred sixty-four thousand, four hundred fifty".