1850428 has 6 divisors (see below), whose sum is σ = 3238256. Its totient is φ = 925212.

The previous prime is 1850423. The next prime is 1850441. The reversal of 1850428 is 8240581.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1850396 and 1850405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1850423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231300 + ... + 231307.

2^1850428 is an apocalyptic number.

It is an amenable number.

1850428 is a deficient number, since it is larger than the sum of its proper divisors (1387828).

1850428 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 1850428 = (1054288)₁₁.

1850428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462611 (or 462609 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1850428 is about 1360.3043777038. The cubic root of 1850428 is about 122.7695687945.

It can be divided in two parts, 1850 and 428, that added together give a triangular number (2278 = T₆₇).

The spelling of 1850428 in words is "one million, eight hundred fifty thousand, four hundred twenty-eight".