140401320 has 32 divisors (see below), whose sum is σ = 421204320. Its totient is φ = 37440320.

The previous prime is 140401301. The next prime is 140401333. The reversal of 140401320 is 23104041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 140401320.

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 7 ways as a sum of consecutive naturals, for example, 584886 + ... + 585125.

It is an arithmetic number, because the mean of its divisors is an integer number (13162635).

Almost surely, 2^140401320 is an apocalyptic number.

140401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140401320 is an abundant number, since it is smaller than the sum of its proper divisors (280803000).

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

140401320 is a wasteful number, since it uses less digits than its factorization.

140401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170025 (or 1170021 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140401320 is about 11849.1062954132. The cubic root of 140401320 is about 519.7450920251.

Adding to 140401320 its reverse (23104041), we get a palindrome (163505361).

The spelling of 140401320 in words is "one hundred forty million, four hundred one thousand, three hundred twenty".