140800420 has 12 divisors (see below), whose sum is σ = 295680924. Its totient is φ = 56320160.

The previous prime is 140800399. The next prime is 140800427. The reversal of 140800420 is 24008041.

It can be written as a sum of positive squares in 2 ways, for example, as 91126116 + 49674304 = 9546^2 + 7048^2 .

It is not an unprimeable number, because it can be changed into a prime (140800427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519991 + ... + 3520030.

It is an arithmetic number, because the mean of its divisors is an integer number (24640077).

Almost surely, 2^140800420 is an apocalyptic number.

140800420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140800420 is an abundant number, since it is smaller than the sum of its proper divisors (154880504).

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

140800420 is a wasteful number, since it uses less digits than its factorization.

140800420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040030 (or 7040028 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 140800420 is about 11865.9352770863. The cubic root of 140800420 is about 520.2370960207.

Adding to 140800420 its reverse (24008041), we get a palindrome (164808461).

The spelling of 140800420 in words is "one hundred forty million, eight hundred thousand, four hundred twenty".