1401423210 has 96 divisors (see below), whose sum is σ = 4008139200. Its totient is φ = 339709920.

The previous prime is 1401423209. The next prime is 1401423229. The reversal of 1401423210 is 123241041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113941 + ... + 125639.

It is an arithmetic number, because the mean of its divisors is an integer number (41751450).

Almost surely, 2^1401423210 is an apocalyptic number.

1401423210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401423210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004069600).

1401423210 is an abundant number, since it is smaller than the sum of its proper divisors (2606715990).

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

1401423210 is a wasteful number, since it uses less digits than its factorization.

1401423210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745 (or 11720 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1401423210 is about 37435.5874803642. The cubic root of 1401423210 is about 1119.0678921018.

Adding to 1401423210 its reverse (123241041), we get a palindrome (1524664251).

The spelling of 1401423210 in words is "one billion, four hundred one million, four hundred twenty-three thousand, two hundred ten".