140415620 has 12 divisors (see below), whose sum is σ = 294872844. Its totient is φ = 56166240.

The previous prime is 140415601. The next prime is 140415641. The reversal of 140415620 is 26514041.

It can be written as a sum of positive squares in 2 ways, for example, as 70425664 + 69989956 = 8392^2 + 8366^2 .

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 3 ways as a sum of consecutive naturals, for example, 3510371 + ... + 3510410.

It is an arithmetic number, because the mean of its divisors is an integer number (24572737).

Almost surely, 2^140415620 is an apocalyptic number.

140415620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140415620 is an abundant number, since it is smaller than the sum of its proper divisors (154457224).

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

140415620 is a wasteful number, since it uses less digits than its factorization.

140415620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020790 (or 7020788 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140415620 is about 11849.7097010855. The cubic root of 140415620 is about 519.7627369269.

Adding to 140415620 its reverse (26514041), we get a palindrome (166929661).

The spelling of 140415620 in words is "one hundred forty million, four hundred fifteen thousand, six hundred twenty".