1400521252 has 36 divisors (see below), whose sum is σ = 2668087296. Its totient is φ = 642950880.

The previous prime is 1400521207. The next prime is 1400521259. The reversal of 1400521252 is 2521250041.

It is a super-2 number, since 2×1400521252² = 3922919554607295008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400521259) 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 11 ways as a sum of consecutive naturals, for example, 123693 + ... + 134539.

It is an arithmetic number, because the mean of its divisors is an integer number (74113536).

Almost surely, 2^1400521252 is an apocalyptic number.

It is an amenable number.

1400521252 is a deficient number, since it is larger than the sum of its proper divisors (1267566044).

1400521252 is a wasteful number, since it uses less digits than its factorization.

1400521252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11068 (or 11053 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1400521252 is about 37423.5387423477. The cubic root of 1400521252 is about 1118.8277626752.

Adding to 1400521252 its reverse (2521250041), we get a palindrome (3921771293).

The spelling of 1400521252 in words is "one billion, four hundred million, five hundred twenty-one thousand, two hundred fifty-two".