1840713645 has 16 divisors (see below), whose sum is σ = 2947102272. Its totient is φ = 981060480.

The previous prime is 1840713601. The next prime is 1840713653. The reversal of 1840713645 is 5463170481.

It is not a de Polignac number, because 1840713645 - 2⁷ = 1840713517 is a prime.

It is a super-3 number, since 3×1840713645³ (a number of 29 digits) contains 333 as substring.

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, 17112 + ... + 63041.

It is an arithmetic number, because the mean of its divisors is an integer number (184193892).

Almost surely, 2^1840713645 is an apocalyptic number.

1840713645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1840713645 is a deficient number, since it is larger than the sum of its proper divisors (1106388627).

1840713645 is a wasteful number, since it uses less digits than its factorization.

1840713645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81692.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1840713645 is about 42903.5388400537. The cubic root of 1840713645 is about 1225.5435366656.

The spelling of 1840713645 in words is "one billion, eight hundred forty million, seven hundred thirteen thousand, six hundred forty-five".