2261418438 has 32 divisors (see below), whose sum is σ = 4860376704. Its totient is φ = 698873472.

The previous prime is 2261418433. The next prime is 2261418451. The reversal of 2261418438 is 8348141622.

It is a super-2 number, since 2×2261418438² = 10228026703452719688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261418396 and 2261418405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261418433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158620 + ... + 172287.

It is an arithmetic number, because the mean of its divisors is an integer number (151886772).

Almost surely, 2^2261418438 is an apocalyptic number.

2261418438 is an abundant number, since it is smaller than the sum of its proper divisors (2598958266).

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

2261418438 is a wasteful number, since it uses less digits than its factorization.

2261418438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330996.

The product of its digits is 73728, while the sum is 39.

The square root of 2261418438 is about 47554.3734897223. The cubic root of 2261418438 is about 1312.5836077715.

The spelling of 2261418438 in words is "two billion, two hundred sixty-one million, four hundred eighteen thousand, four hundred thirty-eight".