140655400 has 24 divisors (see below), whose sum is σ = 327024270. Its totient is φ = 56262080.

The previous prime is 140655397. The next prime is 140655413. The reversal of 140655400 is 4556041.

It can be written as a sum of positive squares in 3 ways, for example, as 71199844 + 69455556 = 8438^2 + 8334^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 351439 + ... + 351838.

Almost surely, 2^140655400 is an apocalyptic number.

140655400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140655400 is an abundant number, since it is smaller than the sum of its proper divisors (186368870).

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

140655400 is a wasteful number, since it uses less digits than its factorization.

140655400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703293 (or 703284 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 140655400 is about 11859.8229329109. The cubic root of 140655400 is about 520.0584253879.

The spelling of 140655400 in words is "one hundred forty million, six hundred fifty-five thousand, four hundred".