20142452 has 24 divisors (see below), whose sum is σ = 38986752. Its totient is φ = 9028800.

The previous prime is 20142427. The next prime is 20142481. The reversal of 20142452 is 25424102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 77 + ... + 6347.

It is an arithmetic number, because the mean of its divisors is an integer number (1624448).

Almost surely, 2^20142452 is an apocalyptic number.

20142452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20142452 is a deficient number, since it is larger than the sum of its proper divisors (18844300).

20142452 is a wasteful number, since it uses less digits than its factorization.

20142452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359 (or 6357 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20142452 is about 4488.0343135943. The cubic root of 20142452 is about 272.0846946460.

Adding to 20142452 its reverse (25424102), we get a palindrome (45566554).

The spelling of 20142452 in words is "twenty million, one hundred forty-two thousand, four hundred fifty-two".