140052444 has 24 divisors (see below), whose sum is σ = 373473408. Its totient is φ = 40014960.

The previous prime is 140052431. The next prime is 140052449. The reversal of 140052444 is 444250041.

It is a happy number.

It is a super-2 number, since 2×140052444² = 39229374140746272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140052449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 833562 + ... + 833729.

It is an arithmetic number, because the mean of its divisors is an integer number (15561392).

Almost surely, 2^140052444 is an apocalyptic number.

140052444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140052444 is an abundant number, since it is smaller than the sum of its proper divisors (233420964).

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

140052444 is a wasteful number, since it uses less digits than its factorization.

140052444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667305 (or 1667303 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 140052444 is about 11834.3755221811. The cubic root of 140052444 is about 519.3142390338.

The spelling of 140052444 in words is "one hundred forty million, fifty-two thousand, four hundred forty-four".