1400221004 has 24 divisors (see below), whose sum is σ = 3015861408. Its totient is φ = 553933440.

The previous prime is 1400220977. The next prime is 1400221013. The reversal of 1400221004 is 4001220041.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 1400221004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1923017 + ... + 1923744.

It is an arithmetic number, because the mean of its divisors is an integer number (125660892).

Almost surely, 2^1400221004 is an apocalyptic number.

1400221004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1400221004 is an abundant number, since it is smaller than the sum of its proper divisors (1615640404).

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

1400221004 is a wasteful number, since it uses less digits than its factorization.

1400221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846785 (or 3846783 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1400221004 is about 37419.5270413724. The cubic root of 1400221004 is about 1118.7478043963.

Adding to 1400221004 its reverse (4001220041), we get a palindrome (5401441045).

The spelling of 1400221004 in words is "one billion, four hundred million, two hundred twenty-one thousand, four".