1400234221 has 4 divisors (see below), whose sum is σ = 1413828832. Its totient is φ = 1386639612.

The previous prime is 1400234201. The next prime is 1400234249. The reversal of 1400234221 is 1224320041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1400234221 - 2¹¹ = 1400232173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400234201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6797151 + ... + 6797356.

It is an arithmetic number, because the mean of its divisors is an integer number (353457208).

Almost surely, 2^1400234221 is an apocalyptic number.

It is an amenable number.

1400234221 is a deficient number, since it is larger than the sum of its proper divisors (13594611).

1400234221 is a wasteful number, since it uses less digits than its factorization.

1400234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13594610.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1400234221 is about 37419.7036466084. The cubic root of 1400234221 is about 1118.7513244223.

Adding to 1400234221 its reverse (1224320041), we get a palindrome (2624554262).

The spelling of 1400234221 in words is "one billion, four hundred million, two hundred thirty-four thousand, two hundred twenty-one".