1643010441 has 32 divisors (see below), whose sum is σ = 2380855680. Its totient is φ = 1003951104.

The previous prime is 1643010437. The next prime is 1643010463. The reversal of 1643010441 is 1440103461.

It is not a de Polignac number, because 1643010441 - 2² = 1643010437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1643014441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373531 + ... + 377903.

It is an arithmetic number, because the mean of its divisors is an integer number (74401740).

Almost surely, 2^1643010441 is an apocalyptic number.

It is an amenable number.

1643010441 is a deficient number, since it is larger than the sum of its proper divisors (737845239).

1643010441 is a wasteful number, since it uses less digits than its factorization.

1643010441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1643010441 is about 40534.0651921319. The cubic root of 1643010441 is about 1179.9948388647.

The spelling of 1643010441 in words is "one billion, six hundred forty-three million, ten thousand, four hundred forty-one".