1401020000 has 60 divisors (see below), whose sum is σ = 3446768556. Its totient is φ = 560400000.

The previous prime is 1401019993. The next prime is 1401020009. The reversal of 1401020000 is 201041.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1401020000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401020009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15026 + ... + 55025.

Almost surely, 2^1401020000 is an apocalyptic number.

1401020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401020000 is an abundant number, since it is smaller than the sum of its proper divisors (2045748556).

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

1401020000 is an frugal number, since it uses more digits than its factorization.

1401020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70081 (or 70058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1401020000 is about 37430.2017093149. The cubic root of 1401020000 is about 1118.9605577285.

Adding to 1401020000 its reverse (201041), we get a palindrome (1401221041).

The spelling of 1401020000 in words is "one billion, four hundred one million, twenty thousand".