140915244 has 72 divisors (see below), whose sum is σ = 352779840. Its totient is φ = 43768064.

The previous prime is 140915239. The next prime is 140915251. The reversal of 140915244 is 442519041.

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 23 ways as a sum of consecutive naturals, for example, 620659 + ... + 620885.

It is an arithmetic number, because the mean of its divisors is an integer number (4899720).

Almost surely, 2^140915244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140915244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176389920).

140915244 is an abundant number, since it is smaller than the sum of its proper divisors (211864596).

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

140915244 is a wasteful number, since it uses less digits than its factorization.

140915244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 140915244 is about 11870.7726791477. The cubic root of 140915244 is about 520.3784769279.

It can be divided in two parts, 1409 and 15244, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 140915244 in words is "one hundred forty million, nine hundred fifteen thousand, two hundred forty-four".