2236387290840 has 96 divisors (see below), whose sum is σ = 7537453494480. Its totient is φ = 596369941632.

The previous prime is 2236387290773. The next prime is 2236387290889. The reversal of 2236387290840 is 480927836322.

2236387290840 is a `hidden beast` number, since 2 + 236 + 3 + 87 + 290 + 8 + 40 = 666.

It is a super-2 number, since 2×2236387290840² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 115030779 + ... + 115050218.

Almost surely, 2^{2236387290840} is an apocalyptic number.

2236387290840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2236387290840 is an abundant number, since it is smaller than the sum of its proper divisors (5301066203640).

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

2236387290840 is a wasteful number, since it uses less digits than its factorization.

2236387290840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230081023 (or 230081007 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 2236387290840 in words is "two trillion, two hundred thirty-six billion, three hundred eighty-seven million, two hundred ninety thousand, eight hundred forty".