140305452 has 24 divisors (see below), whose sum is σ = 374148096. Its totient is φ = 40087248.

The previous prime is 140305427. The next prime is 140305493. The reversal of 140305452 is 254503041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835068 + ... + 835235.

It is an arithmetic number, because the mean of its divisors is an integer number (15589504).

Almost surely, 2^140305452 is an apocalyptic number.

140305452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140305452 is an abundant number, since it is smaller than the sum of its proper divisors (233842644).

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

140305452 is a wasteful number, since it uses less digits than its factorization.

140305452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670317 (or 1670315 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140305452 is about 11845.0602362335. The cubic root of 140305452 is about 519.6267686655.

Adding to 140305452 its reverse (254503041), we get a palindrome (394808493).

The spelling of 140305452 in words is "one hundred forty million, three hundred five thousand, four hundred fifty-two".