1438902 has 12 divisors (see below), whose sum is σ = 3117660. Its totient is φ = 479628.

The previous prime is 1438901. The next prime is 1438907. The reversal of 1438902 is 2098341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39952 + ... + 39987.

It is an arithmetic number, because the mean of its divisors is an integer number (259805).

2^1438902 is an apocalyptic number.

1438902 is an abundant number, since it is smaller than the sum of its proper divisors (1678758).

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

1438902 is a wasteful number, since it uses less digits than its factorization.

1438902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79947 (or 79944 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1438902 is about 1199.5424127558. The cubic root of 1438902 is about 112.8956145688.

It can be divided in two parts, 143 and 8902, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 1438902 in words is "one million, four hundred thirty-eight thousand, nine hundred two".