1873840449 has 16 divisors (see below), whose sum is σ = 2728543104. Its totient is φ = 1136889600.

The previous prime is 1873840447. The next prime is 1873840483. The reversal of 1873840449 is 9440483781.

It is not a de Polignac number, because 1873840449 - 2¹ = 1873840447 is a prime.

It is a super-2 number, since 2×1873840449² = 7022556056617043202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1873840398 and 1873840407.

It is not an unprimeable number, because it can be changed into a prime (1873840447) 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, 335592 + ... + 341129.

It is an arithmetic number, because the mean of its divisors is an integer number (170533944).

Almost surely, 2^1873840449 is an apocalyptic number.

It is an amenable number.

1873840449 is a deficient number, since it is larger than the sum of its proper divisors (854702655).

1873840449 is a wasteful number, since it uses less digits than its factorization.

1873840449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676808.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 1873840449 is about 43287.8787768585. The cubic root of 1873840449 is about 1232.8517893088.

The spelling of 1873840449 in words is "one billion, eight hundred seventy-three million, eight hundred forty thousand, four hundred forty-nine".