2052749642 has 4 divisors (see below), whose sum is σ = 3079124466. Its totient is φ = 1026374820.

The previous prime is 2052749627. The next prime is 2052749651. The reversal of 2052749642 is 2469472502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1854249721 + 198499921 = 43061^2 + 14089^2 .

It is a super-2 number, since 2×2052749642² = 8427562185462256328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2052749642.

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 as a sum of consecutive naturals, namely, 513187409 + ... + 513187412.

Almost surely, 2^2052749642 is an apocalyptic number.

2052749642 is a deficient number, since it is larger than the sum of its proper divisors (1026374824).

2052749642 is a wasteful number, since it uses less digits than its factorization.

2052749642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026374823.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2052749642 is about 45307.2802317685. The cubic root of 2052749642 is about 1270.9018006501.

The spelling of 2052749642 in words is "two billion, fifty-two million, seven hundred forty-nine thousand, six hundred forty-two".