4140021040 has 20 divisors (see below), whose sum is σ = 9625549104. Its totient is φ = 1656008384.

The previous prime is 4140021031. The next prime is 4140021047. The reversal of 4140021040 is 401200414.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4140021047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25875052 + ... + 25875211.

Almost surely, 2^4140021040 is an apocalyptic number.

4140021040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4140021040 is an abundant number, since it is smaller than the sum of its proper divisors (5485528064).

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

4140021040 is a wasteful number, since it uses less digits than its factorization.

4140021040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51750276 (or 51750270 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4140021040 is about 64342.9952675503. The cubic root of 4140021040 is about 1605.7114937645.

Adding to 4140021040 its reverse (401200414), we get a palindrome (4541221454).

The spelling of 4140021040 in words is "four billion, one hundred forty million, twenty-one thousand, forty".