1840229445 has 16 divisors (see below), whose sum is σ = 3016181952. Its totient is φ = 957517440.

The previous prime is 1840229429. The next prime is 1840229459. The reversal of 1840229445 is 5449220481.

It is not a de Polignac number, because 1840229445 - 2⁴ = 1840229429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1495507 + ... + 1496736.

It is an arithmetic number, because the mean of its divisors is an integer number (188511372).

Almost surely, 2^1840229445 is an apocalyptic number.

1840229445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1840229445 is a deficient number, since it is larger than the sum of its proper divisors (1175952507).

1840229445 is a wasteful number, since it uses less digits than its factorization.

1840229445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992292.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1840229445 is about 42897.8955777553. The cubic root of 1840229445 is about 1225.4360674382.

The spelling of 1840229445 in words is "one billion, eight hundred forty million, two hundred twenty-nine thousand, four hundred forty-five".