1401421004 has 48 divisors (see below), whose sum is σ = 2631605760. Its totient is φ = 651530880.

The previous prime is 1401421001. The next prime is 1401421009. The reversal of 1401421004 is 4001241041.

It is not an unprimeable number, because it can be changed into a prime (1401421001) 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, 475367 + ... + 478305.

It is an arithmetic number, because the mean of its divisors is an integer number (54825120).

Almost surely, 2^1401421004 is an apocalyptic number.

It is an amenable number.

1401421004 is a deficient number, since it is larger than the sum of its proper divisors (1230184756).

1401421004 is a wasteful number, since it uses less digits than its factorization.

1401421004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1401421004 is about 37435.5580164100. The cubic root of 1401421004 is about 1119.0673049213.

Adding to 1401421004 its reverse (4001241041), we get a palindrome (5402662045).

The spelling of 1401421004 in words is "one billion, four hundred one million, four hundred twenty-one thousand, four".