1840422145 has 32 divisors (see below), whose sum is σ = 2326351104. Its totient is φ = 1396147200.

The previous prime is 1840422139. The next prime is 1840422161. The reversal of 1840422145 is 5412240481.

It is not a de Polignac number, because 1840422145 - 2²³ = 1832033537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2476644 + ... + 2477386.

It is an arithmetic number, because the mean of its divisors is an integer number (72698472).

Almost surely, 2^1840422145 is an apocalyptic number.

It is an amenable number.

1840422145 is a deficient number, since it is larger than the sum of its proper divisors (485928959).

1840422145 is a wasteful number, since it uses less digits than its factorization.

1840422145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 1840422145 is about 42900.1415498830. The cubic root of 1840422145 is about 1225.4788398741.

The spelling of 1840422145 in words is "one billion, eight hundred forty million, four hundred twenty-two thousand, one hundred forty-five".