1949961222 has 192 divisors, whose sum is σ = 5094432000. Its totient is φ = 550851840.

The previous prime is 1949961199. The next prime is 1949961263. The reversal of 1949961222 is 2221699491.

1949961222 is a `hidden beast` number, since 1 + 9 + 4 + 9 + 9 + 612 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14028429 + ... + 14028567.

It is an arithmetic number, because the mean of its divisors is an integer number (26533500).

Almost surely, 2^1949961222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949961222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2547216000).

1949961222 is an abundant number, since it is smaller than the sum of its proper divisors (3144470778).

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

1949961222 is a wasteful number, since it uses less digits than its factorization.

1949961222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 287 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 1949961222 is about 44158.3652550680. The cubic root of 1949961222 is about 1249.3246959306.

It can be divided in two parts, 194 and 9961222, that added together give a triangular number (9961416 = T₄₄₆₃).

The spelling of 1949961222 in words is "one billion, nine hundred forty-nine million, nine hundred sixty-one thousand, two hundred twenty-two".