1946047920 has 40 divisors (see below), whose sum is σ = 6032749296. Its totient is φ = 518946048.

The previous prime is 1946047891. The next prime is 1946047927. The reversal of 1946047920 is 297406491.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1946047927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4054027 + ... + 4054506.

Almost surely, 2^1946047920 is an apocalyptic number.

1946047920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1946047920 is an abundant number, since it is smaller than the sum of its proper divisors (4086701376).

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

1946047920 is a wasteful number, since it uses less digits than its factorization.

1946047920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8108549 (or 8108543 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1946047920 is about 44114.0331413939. The cubic root of 1946047920 is about 1248.4883957122.

The spelling of 1946047920 in words is "one billion, nine hundred forty-six million, forty-seven thousand, nine hundred twenty".