1840157 has 8 divisors (see below), whose sum is σ = 2024352. Its totient is φ = 1658800.

The previous prime is 1840123. The next prime is 1840171. The reversal of 1840157 is 7510481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1840157 - 2¹⁰ = 1839133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (253044).

2^1840157 is an apocalyptic number.

It is an amenable number.

1840157 is a deficient number, since it is larger than the sum of its proper divisors (184195).

1840157 is a wasteful number, since it uses less digits than its factorization.

1840157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1840157 is about 1356.5238663584. The cubic root of 1840157 is about 122.5419986494.

The spelling of 1840157 in words is "one million, eight hundred forty thousand, one hundred fifty-seven".