1840074434 has 16 divisors (see below), whose sum is σ = 3013536960. Its totient is φ = 835701360.

The previous prime is 1840074433. The next prime is 1840074443. The reversal of 1840074434 is 4344700481.

It is a junction number, because it is equal to n+sod(n) for n = 1840074394 and 1840074403.

It is not an unprimeable number, because it can be changed into a prime (1840074433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7289 + ... + 61100.

It is an arithmetic number, because the mean of its divisors is an integer number (188346060).

Almost surely, 2^1840074434 is an apocalyptic number.

1840074434 is a deficient number, since it is larger than the sum of its proper divisors (1173462526).

1840074434 is a wasteful number, since it uses less digits than its factorization.

1840074434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69625.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 1840074434 is about 42896.0887960662. The cubic root of 1840074434 is about 1225.4016584311.

The spelling of 1840074434 in words is "one billion, eight hundred forty million, seventy-four thousand, four hundred thirty-four".