140007420 has 96 divisors (see below), whose sum is σ = 497817600. Its totient is φ = 32000832.

The previous prime is 140007401. The next prime is 140007443. The reversal of 140007420 is 24700041.

It is a happy number.

It is a super-3 number, since 3×140007420³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140007393 and 140007402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14740 + ... + 22299.

It is an arithmetic number, because the mean of its divisors is an integer number (5185600).

Almost surely, 2^140007420 is an apocalyptic number.

140007420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140007420 is an abundant number, since it is smaller than the sum of its proper divisors (357810180).

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

140007420 is a wasteful number, since it uses less digits than its factorization.

140007420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37064 (or 37056 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 140007420 is about 11832.4731142733. The cubic root of 140007420 is about 519.2585834293.

Adding to 140007420 its reverse (24700041), we get a palindrome (164707461).

The spelling of 140007420 in words is "one hundred forty million, seven thousand, four hundred twenty".