1401162320 has 40 divisors (see below), whose sum is σ = 3270728160. Its totient is φ = 558224000.

The previous prime is 1401162319. The next prime is 1401162403. The reversal of 1401162320 is 232611041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1401162292 and 1401162301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14810 + ... + 54969.

It is an arithmetic number, because the mean of its divisors is an integer number (81768204).

Almost surely, 2^1401162320 is an apocalyptic number.

1401162320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401162320 is an abundant number, since it is smaller than the sum of its proper divisors (1869565840).

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

1401162320 is a wasteful number, since it uses less digits than its factorization.

1401162320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70043 (or 70037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1401162320 is about 37432.1027996024. The cubic root of 1401162320 is about 1118.9984456184.

Adding to 1401162320 its reverse (232611041), we get a palindrome (1633773361).

The spelling of 1401162320 in words is "one billion, four hundred one million, one hundred sixty-two thousand, three hundred twenty".