1851246 has 24 divisors (see below), whose sum is σ = 4222920. Its totient is φ = 584496.

The previous prime is 1851217. The next prime is 1851253. The reversal of 1851246 is 6421581.

It is a super-2 number, since 2×1851246² = 6854223505032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2365 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (175955).

2^1851246 is an apocalyptic number.

1851246 is an abundant number, since it is smaller than the sum of its proper divisors (2371674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1851246 is a wasteful number, since it uses less digits than its factorization.

1851246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440 (or 5437 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1851246 is about 1360.6050124853. The cubic root of 1851246 is about 122.7876566302.

It can be divided in two parts, 185 and 1246, that added together give a triangular number (1431 = T₅₃).

The spelling of 1851246 in words is "one million, eight hundred fifty-one thousand, two hundred forty-six".