4028234436640 has 48 divisors (see below), whose sum is σ = 9930473598528. Its totient is φ = 1541237522176.

The previous prime is 4028234436623. The next prime is 4028234436641. The reversal of 4028234436640 is 466344328204.

It is a happy number.

It is a super-3 number, since 3×4028234436640³ (a number of 39 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (4028234436641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547310782 + ... + 547318141.

It is an arithmetic number, because the mean of its divisors is an integer number (206884866636).

Almost surely, 2^{4028234436640} is an apocalyptic number.

4028234436640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028234436640 is an abundant number, since it is smaller than the sum of its proper divisors (5902239161888).

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

4028234436640 is a wasteful number, since it uses less digits than its factorization.

4028234436640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094628961 (or 1094628953 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 4028234436640 in words is "four trillion, twenty-eight billion, two hundred thirty-four million, four hundred thirty-six thousand, six hundred forty".