140400030 has 16 divisors (see below), whose sum is σ = 336960144. Its totient is φ = 37440000.

The previous prime is 140400019. The next prime is 140400037. The reversal of 140400030 is 30004041.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140399979 and 140400015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140400037) 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, 2339971 + ... + 2340030.

It is an arithmetic number, because the mean of its divisors is an integer number (21060009).

Almost surely, 2^140400030 is an apocalyptic number.

140400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140400030 is an abundant number, since it is smaller than the sum of its proper divisors (196560114).

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

140400030 is a wasteful number, since it uses less digits than its factorization.

140400030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680011.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 140400030 is about 11849.0518608030. The cubic root of 140400030 is about 519.7435002233.

Adding to 140400030 its reverse (30004041), we get a palindrome (170404071).

The spelling of 140400030 in words is "one hundred forty million, four hundred thousand, thirty".