1042551252 has 36 divisors (see below), whose sum is σ = 2671445140. Its totient is φ = 342755712.

The previous prime is 1042551241. The next prime is 1042551253. The reversal of 1042551252 is 2521552401.

1042551252 is a `hidden beast` number, since 104 + 2 + 551 + 2 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 817731216 + 224820036 = 28596^2 + 14994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1042551252² = 2173826226093535008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042551253) 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, 195727 + ... + 200982.

Almost surely, 2^1042551252 is an apocalyptic number.

1042551252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1042551252 is an abundant number, since it is smaller than the sum of its proper divisors (1628893888).

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

1042551252 is a wasteful number, since it uses less digits than its factorization.

1042551252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396792 (or 396787 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1042551252 is about 32288.5622473346. The cubic root of 1042551252 is about 1013.9871968319.

The spelling of 1042551252 in words is "one billion, forty-two million, five hundred fifty-one thousand, two hundred fifty-two".