1002400052 has 6 divisors (see below), whose sum is σ = 1754200098. Its totient is φ = 501200024.

The previous prime is 1002400031. The next prime is 1002400163. The reversal of 1002400052 is 2500042001.

It can be written as a sum of positive squares in only one way, i.e., 998812816 + 3587236 = 31604^2 + 1894^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125300003 + ... + 125300010.

It is an arithmetic number, because the mean of its divisors is an integer number (292366683).

Almost surely, 2^1002400052 is an apocalyptic number.

It is an amenable number.

1002400052 is a deficient number, since it is larger than the sum of its proper divisors (751800046).

1002400052 is a wasteful number, since it uses less digits than its factorization.

1002400052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250600017 (or 250600015 counting only the distinct ones).

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

The square root of 1002400052 is about 31660.7020136951. The cubic root of 1002400052 is about 1000.7993781576.

Adding to 1002400052 its reverse (2500042001), we get a palindrome (3502442053).

The spelling of 1002400052 in words is "one billion, two million, four hundred thousand, fifty-two".