4215021140 has 48 divisors (see below), whose sum is σ = 10224252864. Its totient is φ = 1442572800.

The previous prime is 4215021133. The next prime is 4215021149. The reversal of 4215021140 is 411205124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4215021149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559766 + ... + 567245.

It is an arithmetic number, because the mean of its divisors is an integer number (213005268).

Almost surely, 2^4215021140 is an apocalyptic number.

It is an amenable number.

4215021140 is an abundant number, since it is smaller than the sum of its proper divisors (6009231724).

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

4215021140 is a wasteful number, since it uses less digits than its factorization.

4215021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127048 (or 1127046 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4215021140 is about 64923.1941604847. The cubic root of 4215021140 is about 1615.3498128777.

Adding to 4215021140 its reverse (411205124), we get a palindrome (4626226264).

The spelling of 4215021140 in words is "four billion, two hundred fifteen million, twenty-one thousand, one hundred forty".