1902238 has 16 divisors (see below), whose sum is σ = 3207456. Its totient is φ = 839520.

The previous prime is 1902221. The next prime is 1902239. The reversal of 1902238 is 8322091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902239) 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 in 7 ways as a sum of consecutive naturals, for example, 993 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (200466).

2^1902238 is an apocalyptic number.

1902238 is a deficient number, since it is larger than the sum of its proper divisors (1305218).

1902238 is a wasteful number, since it uses less digits than its factorization.

1902238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1902238 is about 1379.2164442175. The cubic root of 1902238 is about 123.9048437502.

It can be divided in two parts, 1902 and 238, that multiplied together give a triangular number (452676 = T₉₅₁).

The spelling of 1902238 in words is "one million, nine hundred two thousand, two hundred thirty-eight".