1043997790 has 16 divisors (see below), whose sum is σ = 2050032240. Its totient is φ = 379635520.

The previous prime is 1043997751. The next prime is 1043997797. The reversal of 1043997790 is 977993401.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043997797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4745335 + ... + 4745554.

It is an arithmetic number, because the mean of its divisors is an integer number (128127015).

Almost surely, 2^1043997790 is an apocalyptic number.

1043997790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1043997790 is a deficient number, since it is larger than the sum of its proper divisors (1006034450).

1043997790 is a wasteful number, since it uses less digits than its factorization.

1043997790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490907.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1043997790 is about 32310.9546438975. The cubic root of 1043997790 is about 1014.4559485761.

The spelling of 1043997790 in words is "one billion, forty-three million, nine hundred ninety-seven thousand, seven hundred ninety".