140453420 has 12 divisors (see below), whose sum is σ = 294952224. Its totient is φ = 56181360.

The previous prime is 140453419. The next prime is 140453431. The reversal of 140453420 is 24354041.

It is a super-4 number, since 4×140453420⁴ (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3511316 + ... + 3511355.

It is an arithmetic number, because the mean of its divisors is an integer number (24579352).

Almost surely, 2^140453420 is an apocalyptic number.

140453420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140453420 is an abundant number, since it is smaller than the sum of its proper divisors (154498804).

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

140453420 is a wasteful number, since it uses less digits than its factorization.

140453420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022680 (or 7022678 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 140453420 is about 11851.3045695400. The cubic root of 140453420 is about 519.8093729272.

The spelling of 140453420 in words is "one hundred forty million, four hundred fifty-three thousand, four hundred twenty".