1840996641 has 8 divisors (see below), whose sum is σ = 2677813344. Its totient is φ = 1115755520.

The previous prime is 1840996639. The next prime is 1840996649. The reversal of 1840996641 is 1466990481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1840996641 - 2¹ = 1840996639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1840996649) 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, 27893856 + ... + 27893921.

It is an arithmetic number, because the mean of its divisors is an integer number (334726668).

Almost surely, 2^1840996641 is an apocalyptic number.

1840996641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1840996641 is a deficient number, since it is larger than the sum of its proper divisors (836816703).

1840996641 is a wasteful number, since it uses less digits than its factorization.

1840996641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55787791.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 1840996641 is about 42906.8367629216. The cubic root of 1840996641 is about 1225.6063395079.

The spelling of 1840996641 in words is "one billion, eight hundred forty million, nine hundred ninety-six thousand, six hundred forty-one".