2238578061 has 16 divisors (see below), whose sum is σ = 3037990080. Its totient is φ = 1465845120.

The previous prime is 2238578051. The next prime is 2238578113. The reversal of 2238578061 is 1608758322.

It is not a de Polignac number, because 2238578061 - 2⁵ = 2238578029 is a prime.

It is a super-2 number, since 2×2238578061² = 10022463470381039442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238578051) 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 15 ways as a sum of consecutive naturals, for example, 126961 + ... + 143513.

It is an arithmetic number, because the mean of its divisors is an integer number (189874380).

Almost surely, 2^2238578061 is an apocalyptic number.

It is an amenable number.

2238578061 is a deficient number, since it is larger than the sum of its proper divisors (799412019).

2238578061 is a wasteful number, since it uses less digits than its factorization.

2238578061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17356.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2238578061 is about 47313.6139076271. The cubic root of 2238578061 is about 1308.1496049503.

The spelling of 2238578061 in words is "two billion, two hundred thirty-eight million, five hundred seventy-eight thousand, sixty-one".