1906631441 has 16 divisors (see below), whose sum is σ = 2241189888. Its totient is φ = 1599091200.

The previous prime is 1906631431. The next prime is 1906631459. The reversal of 1906631441 is 1441366091.

It is a cyclic number.

It is not a de Polignac number, because 1906631441 - 2²² = 1902437137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1906631431) 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, 478640 + ... + 482606.

It is an arithmetic number, because the mean of its divisors is an integer number (140074368).

Almost surely, 2^1906631441 is an apocalyptic number.

1906631441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1906631441 is a deficient number, since it is larger than the sum of its proper divisors (334558447).

1906631441 is a wasteful number, since it uses less digits than its factorization.

1906631441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1906631441 is about 43664.9910225572. The cubic root of 1906631441 is about 1240.0016131179.

The spelling of 1906631441 in words is "one billion, nine hundred six million, six hundred thirty-one thousand, four hundred forty-one".