140140400 has 30 divisors (see below), whose sum is σ = 336688272. Its totient is φ = 56056000.

The previous prime is 140140393. The next prime is 140140411. The reversal of 140140400 is 4041041.

140140400 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174776 + ... + 175575.

Almost surely, 2^140140400 is an apocalyptic number.

140140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140140400 is an abundant number, since it is smaller than the sum of its proper divisors (196547872).

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

140140400 is a wasteful number, since it uses less digits than its factorization.

140140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350369 (or 350358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140140400 is about 11838.0910623293. The cubic root of 140140400 is about 519.4229298529.

Adding to 140140400 its reverse (4041041), we get a palindrome (144181441).

The spelling of 140140400 in words is "one hundred forty million, one hundred forty thousand, four hundred".