1402001320 has 32 divisors (see below), whose sum is σ = 3155672520. Its totient is φ = 560592640.

The previous prime is 1402001303. The next prime is 1402001323. The reversal of 1402001320 is 231002041.

It can be written as a sum of positive squares in 4 ways, for example, as 1025408484 + 376592836 = 32022^2 + 19406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1402001320.

It is not an unprimeable number, because it can be changed into a prime (1402001323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148254 + ... + 157426.

Almost surely, 2^1402001320 is an apocalyptic number.

1402001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402001320 is an abundant number, since it is smaller than the sum of its proper divisors (1753671200).

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

1402001320 is a wasteful number, since it uses less digits than its factorization.

1402001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005 (or 13001 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1402001320 is about 37443.3080803500. The cubic root of 1402001320 is about 1119.2217488850.

Adding to 1402001320 its reverse (231002041), we get a palindrome (1633003361).

The spelling of 1402001320 in words is "one billion, four hundred two million, one thousand, three hundred twenty".