3752420261 has 4 divisors (see below), whose sum is σ = 3915568992. Its totient is φ = 3589271532.

The previous prime is 3752420233. The next prime is 3752420279. The reversal of 3752420261 is 1620242573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1620242573 = 5923 ⋅273551.

It is not a de Polignac number, because 3752420261 - 2¹⁸ = 3752158117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3752420201) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 81574331 + ... + 81574376.

It is an arithmetic number, because the mean of its divisors is an integer number (978892248).

Almost surely, 2^3752420261 is an apocalyptic number.

It is an amenable number.

3752420261 is a deficient number, since it is larger than the sum of its proper divisors (163148731).

3752420261 is a wasteful number, since it uses less digits than its factorization.

3752420261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163148730.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 3752420261 is about 61257.0017304145. The cubic root of 3752420261 is about 1553.9504172593.

The spelling of 3752420261 in words is "three billion, seven hundred fifty-two million, four hundred twenty thousand, two hundred sixty-one".