1400252 has 24 divisors (see below), whose sum is σ = 2868096. Its totient is φ = 585648.

The previous prime is 1400251. The next prime is 1400261. The reversal of 1400252 is 2520041.

It is a Harshad number since it is a multiple of its sum of digits (14).

1400252 is a modest number, since divided by 252 gives 140 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400251) 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 7 ways as a sum of consecutive naturals, for example, 623 + ... + 1785.

It is an arithmetic number, because the mean of its divisors is an integer number (119504).

2^1400252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434048).

1400252 is an abundant number, since it is smaller than the sum of its proper divisors (1467844).

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

1400252 is a wasteful number, since it uses less digits than its factorization.

1400252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1215 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1400252 is about 1183.3224412644. The cubic root of 1400252 is about 111.8756059391.

Adding to 1400252 its reverse (2520041), we get a palindrome (3920293).

The spelling of 1400252 in words is "one million, four hundred thousand, two hundred fifty-two".