1912011946 has 16 divisors (see below), whose sum is σ = 3116975400. Its totient is φ = 874369728.

The previous prime is 1912011929. The next prime is 1912011961. The reversal of 1912011946 is 6491102191.

It can be written as a sum of positive squares in 4 ways, for example, as 1264869225 + 647142721 = 35565^2 + 25439^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334501 + ... + 340168.

Almost surely, 2^1912011946 is an apocalyptic number.

1912011946 is a deficient number, since it is larger than the sum of its proper divisors (1204963454).

1912011946 is a wasteful number, since it uses less digits than its factorization.

1912011946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674793.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1912011946 is about 43726.5588172680. The cubic root of 1912011946 is about 1241.1669438673.

The spelling of 1912011946 in words is "one billion, nine hundred twelve million, eleven thousand, nine hundred forty-six".