1840372 has 12 divisors (see below), whose sum is σ = 3281796. Its totient is φ = 902720.

The previous prime is 1840351. The next prime is 1840393. The reversal of 1840372 is 2730481.

It is an interprime number because it is at equal distance from previous prime (1840351) and next prime (1840393).

It can be written as a sum of positive squares in 2 ways, for example, as 1425636 + 414736 = 1194^2 + 644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4129 + ... + 4552.

It is an arithmetic number, because the mean of its divisors is an integer number (273483).

2^1840372 is an apocalyptic number.

It is an amenable number.

1840372 is a deficient number, since it is larger than the sum of its proper divisors (1441424).

1840372 is a wasteful number, since it uses less digits than its factorization.

1840372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8738 (or 8736 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1840372 is about 1356.6031107144. The cubic root of 1840372 is about 122.5467709784.

The spelling of 1840372 in words is "one million, eight hundred forty thousand, three hundred seventy-two".