1402542 has 32 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 442584.

The previous prime is 1402529. The next prime is 1402543. The reversal of 1402542 is 2452041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343 + ... + 1709.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^1402542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641600).

1402542 is an abundant number, since it is smaller than the sum of its proper divisors (1880658).

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

1402542 is a wasteful number, since it uses less digits than its factorization.

1402542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1402542 is about 1184.2896605138. The cubic root of 1402542 is about 111.9365605868.

Adding to 1402542 its reverse (2452041), we get a palindrome (3854583).

The spelling of 1402542 in words is "one million, four hundred two thousand, five hundred forty-two".