4236549642 has 40 divisors (see below), whose sum is σ = 10223245956. Its totient is φ = 1303553088.

The previous prime is 4236549637. The next prime is 4236549659. The reversal of 4236549642 is 2469456324.

4236549642 is a `hidden beast` number, since 42 + 3 + 6 + 549 + 64 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4197873681 + 38675961 = 64791^2 + 6219^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1003723 + ... + 1007934.

Almost surely, 2^4236549642 is an apocalyptic number.

4236549642 is an abundant number, since it is smaller than the sum of its proper divisors (5986696314).

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

4236549642 is a wasteful number, since it uses less digits than its factorization.

4236549642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011684 (or 2011675 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 4236549642 is about 65088.7827663108. The cubic root of 4236549642 is about 1618.0953129150.

It can be divided in two parts, 4236 and 549642, that added together give a triangular number (553878 = T₁₀₅₂).

The spelling of 4236549642 in words is "four billion, two hundred thirty-six million, five hundred forty-nine thousand, six hundred forty-two".