4202321640 has 64 divisors (see below), whose sum is σ = 13753056960. Its totient is φ = 1018744320.

The previous prime is 4202321597. The next prime is 4202321663. The reversal of 4202321640 is 461232024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4202321640.

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 15 ways as a sum of consecutive naturals, for example, 1590469 + ... + 1593108.

It is an arithmetic number, because the mean of its divisors is an integer number (214891515).

Almost surely, 2^4202321640 is an apocalyptic number.

4202321640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4202321640 is an abundant number, since it is smaller than the sum of its proper divisors (9550735320).

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

4202321640 is a wasteful number, since it uses less digits than its factorization.

4202321640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183602 (or 3183598 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4202321640 is about 64825.3163509443. The cubic root of 4202321640 is about 1613.7258770169.

Adding to 4202321640 its reverse (461232024), we get a palindrome (4663553664).

The spelling of 4202321640 in words is "four billion, two hundred two million, three hundred twenty-one thousand, six hundred forty".