1864966950 has 432 divisors, whose sum is σ = 6599108880. Its totient is φ = 385862400.

The previous prime is 1864966949. The next prime is 1864966973. The reversal of 1864966950 is 596694681.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 8004034 + ... + 8004266.

It is an arithmetic number, because the mean of its divisors is an integer number (15275715).

Almost surely, 2^1864966950 is an apocalyptic number.

1864966950 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 1864966950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3299554440).

1864966950 is an abundant number, since it is smaller than the sum of its proper divisors (4734141930).

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

1864966950 is a wasteful number, since it uses less digits than its factorization.

1864966950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 1864966950 is about 43185.2631113902. The cubic root of 1864966950 is about 1230.9026687405.

The spelling of 1864966950 in words is "one billion, eight hundred sixty-four million, nine hundred sixty-six thousand, nine hundred fifty".