1949697792 has 108 divisors (see below), whose sum is σ = 6424578160. Its totient is φ = 557051904.

The previous prime is 1949697733. The next prime is 1949697793. The reversal of 1949697792 is 2977969491.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949697793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44317 + ... + 76572.

Almost surely, 2^1949697792 is an apocalyptic number.

1949697792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1949697792 is an abundant number, since it is smaller than the sum of its proper divisors (4474880368).

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

1949697792 is a wasteful number, since it uses less digits than its factorization.

1949697792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120918 (or 120901 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The square root of 1949697792 is about 44155.3823672721. The cubic root of 1949697792 is about 1249.2684342261.

The spelling of 1949697792 in words is "one billion, nine hundred forty-nine million, six hundred ninety-seven thousand, seven hundred ninety-two".