1393902 has 32 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 457560.

The previous prime is 1393891. The next prime is 1393913. The reversal of 1393902 is 2093931.

It is an interprime number because it is at equal distance from previous prime (1393891) and next prime (1393913).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4327 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1393902 is an apocalyptic number.

1393902 is the 747-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1393902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

1393902 is an abundant number, since it is smaller than the sum of its proper divisors (1751058).

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

1393902 is a wasteful number, since it uses less digits than its factorization.

1393902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1393902 is about 1180.6362691363. The cubic root of 1393902 is about 111.7062348329.

The spelling of 1393902 in words is "one million, three hundred ninety-three thousand, nine hundred two".