1052742690 has 64 divisors (see below), whose sum is σ = 2955081600. Its totient is φ = 265954752.

The previous prime is 1052742623. The next prime is 1052742721. The reversal of 1052742690 is 962472501.

1052742690 is a `hidden beast` number, since 1 + 0 + 527 + 42 + 6 + 90 = 666.

It is a super-2 number, since 2×1052742690² = 2216534342696872200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97477 + ... + 107736.

It is an arithmetic number, because the mean of its divisors is an integer number (46173150).

Almost surely, 2^1052742690 is an apocalyptic number.

1052742690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1052742690 is an abundant number, since it is smaller than the sum of its proper divisors (1902338910).

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

1052742690 is a wasteful number, since it uses less digits than its factorization.

1052742690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205248 (or 205242 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1052742690 is about 32445.9965172901. The cubic root of 1052742690 is about 1017.2805588585.

The spelling of 1052742690 in words is "one billion, fifty-two million, seven hundred forty-two thousand, six hundred ninety".