1401193420 has 48 divisors (see below), whose sum is σ = 3221735328. Its totient is φ = 507663360.

The previous prime is 1401193411. The next prime is 1401193433. The reversal of 1401193420 is 243911041.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49444 + ... + 72436.

It is an arithmetic number, because the mean of its divisors is an integer number (67119486).

Almost surely, 2^1401193420 is an apocalyptic number.

1401193420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401193420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610867664).

1401193420 is an abundant number, since it is smaller than the sum of its proper divisors (1820541908).

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

1401193420 is a wasteful number, since it uses less digits than its factorization.

1401193420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23290 (or 23288 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1401193420 is about 37432.5182161179. The cubic root of 1401193420 is about 1119.0067246007.

The spelling of 1401193420 in words is "one billion, four hundred one million, one hundred ninety-three thousand, four hundred twenty".