1014221640 has 64 divisors (see below), whose sum is σ = 3147595200. Its totient is φ = 261132032.

The previous prime is 1014221629. The next prime is 1014221641. The reversal of 1014221640 is 461224101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1014221641) 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, 142242 + ... + 149201.

It is an arithmetic number, because the mean of its divisors is an integer number (49181175).

Almost surely, 2^1014221640 is an apocalyptic number.

1014221640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1014221640 is an abundant number, since it is smaller than the sum of its proper divisors (2133373560).

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

1014221640 is a wasteful number, since it uses less digits than its factorization.

1014221640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291486 (or 291482 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1014221640 is about 31846.8466256865. The cubic root of 1014221640 is about 1004.7182497734.

Adding to 1014221640 its reverse (461224101), we get a palindrome (1475445741).

The spelling of 1014221640 in words is "one billion, fourteen million, two hundred twenty-one thousand, six hundred forty".