1840069 has 16 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 1370160.

The previous prime is 1840057. The next prime is 1840073. The reversal of 1840069 is 9600481.

It is not a de Polignac number, because 1840069 - 2¹³ = 1831877 is a prime.

It is a super-2 number, since 2×1840069² = 6771707849522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840019) 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, 1252 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^1840069 is an apocalyptic number.

It is an amenable number.

1840069 is a deficient number, since it is larger than the sum of its proper divisors (556091).

1840069 is a wasteful number, since it uses less digits than its factorization.

1840069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1840069 is about 1356.4914301241. The cubic root of 1840069 is about 122.5400452168.

The spelling of 1840069 in words is "one million, eight hundred forty thousand, sixty-nine".