1002390 has 16 divisors (see below), whose sum is σ = 2405808. Its totient is φ = 267296.

The previous prime is 1002377. The next prime is 1002403. The reversal of 1002390 is 932001.

It is an interprime number because it is at equal distance from previous prime (1002377) and next prime (1002403).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16677 + ... + 16736.

It is an arithmetic number, because the mean of its divisors is an integer number (150363).

2^1002390 is an apocalyptic number.

1002390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002390 is an abundant number, since it is smaller than the sum of its proper divisors (1403418).

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

1002390 is a wasteful number, since it uses less digits than its factorization.

1002390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33423.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1002390 is about 1001.1942868395. The cubic root of 1002390 is about 100.0796032830.

Adding to 1002390 its reverse (932001), we get a palindrome (1934391).

The spelling of 1002390 in words is "one million, two thousand, three hundred ninety".