2520642436 has 27 divisors (see below), whose sum is σ = 4779017733. Its totient is φ = 1162770960.

The previous prime is 2520642409. The next prime is 2520642437. The reversal of 2520642436 is 6342460252.

The square root of 2520642436 is 50206.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 372876100 + 2147766336 = 19310^2 + 46344^2 .

It is a super-3 number, since 3×2520642436³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520642437) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1304391 + ... + 1306321.

Almost surely, 2^2520642436 is an apocalyptic number.

2520642436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2520642436 is the 50206-th square number.

It is an amenable number.

2520642436 is a deficient number, since it is larger than the sum of its proper divisors (2258375297).

2520642436 is an equidigital number, since it uses as much as digits as its factorization.

2520642436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The cubic root of 2520642436 is about 1360.9340534107.

The spelling of 2520642436 in words is "two billion, five hundred twenty million, six hundred forty-two thousand, four hundred thirty-six".