140007620 has 24 divisors (see below), whose sum is σ = 301188888. Its totient is φ = 54636800.

The previous prime is 140007619. The next prime is 140007641. The reversal of 140007620 is 26700041.

It can be written as a sum of positive squares in 4 ways, for example, as 6512704 + 133494916 = 2552^2 + 11554^2 .

It is a super-3 number, since 3×140007620³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 140007592 and 140007601.

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, 84551 + ... + 86190.

It is an arithmetic number, because the mean of its divisors is an integer number (12549537).

Almost surely, 2^140007620 is an apocalyptic number.

140007620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140007620 is an abundant number, since it is smaller than the sum of its proper divisors (161181268).

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

140007620 is a wasteful number, since it uses less digits than its factorization.

140007620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170791 (or 170789 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 140007620 is about 11832.4815655889. The cubic root of 140007620 is about 519.2588306821.

Adding to 140007620 its reverse (26700041), we get a palindrome (166707661).

The spelling of 140007620 in words is "one hundred forty million, seven thousand, six hundred twenty".