1949041674 has 48 divisors (see below), whose sum is σ = 4342787592. Its totient is φ = 631286784.

The previous prime is 1949041639. The next prime is 1949041681. The reversal of 1949041674 is 4761409491.

It can be written as a sum of positive squares in 4 ways, for example, as 1936616049 + 12425625 = 44007^2 + 3525^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686562 + ... + 689394.

Almost surely, 2^1949041674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949041674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171393796).

1949041674 is an abundant number, since it is smaller than the sum of its proper divisors (2393745918).

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

1949041674 is a wasteful number, since it uses less digits than its factorization.

1949041674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1949041674 is about 44147.9520929341. The cubic root of 1949041674 is about 1249.1282826818.

The spelling of 1949041674 in words is "one billion, nine hundred forty-nine million, forty-one thousand, six hundred seventy-four".