1401331622 has 4 divisors (see below), whose sum is σ = 2101997436. Its totient is φ = 700665810.

The previous prime is 1401331621. The next prime is 1401331637. The reversal of 1401331622 is 2261331041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2261331041 = 17 ⋅133019473.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401331621) by changing a digit.

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 as a sum of consecutive naturals, namely, 350332904 + ... + 350332907.

It is an arithmetic number, because the mean of its divisors is an integer number (525499359).

Almost surely, 2^1401331622 is an apocalyptic number.

1401331622 is a deficient number, since it is larger than the sum of its proper divisors (700665814).

1401331622 is an equidigital number, since it uses as much as digits as its factorization.

1401331622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700665813.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1401331622 is about 37434.3641858654. The cubic root of 1401331622 is about 1119.0435132127.

Adding to 1401331622 its reverse (2261331041), we get a palindrome (3662662663).

The spelling of 1401331622 in words is "one billion, four hundred one million, three hundred thirty-one thousand, six hundred twenty-two".