1919949932 has 48 divisors (see below), whose sum is σ = 3583598592. Its totient is φ = 898128000.

The previous prime is 1919949917. The next prime is 1919949937. The reversal of 1919949932 is 2399499191.

It is not an unprimeable number, because it can be changed into a prime (1919949937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851807 + ... + 854057.

It is an arithmetic number, because the mean of its divisors is an integer number (74658304).

Almost surely, 2^1919949932 is an apocalyptic number.

It is an amenable number.

1919949932 is a deficient number, since it is larger than the sum of its proper divisors (1663648660).

1919949932 is a wasteful number, since it uses less digits than its factorization.

1919949932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2476 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 56.

The square root of 1919949932 is about 43817.2332764176. The cubic root of 1919949932 is about 1242.8821986128.

The spelling of 1919949932 in words is "one billion, nine hundred nineteen million, nine hundred forty-nine thousand, nine hundred thirty-two".