140406352 has 80 divisors (see below), whose sum is σ = 306408960. Its totient is φ = 62004096.

The previous prime is 140406337. The next prime is 140406361. The reversal of 140406352 is 253604041.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 300423 + ... + 300889.

It is an arithmetic number, because the mean of its divisors is an integer number (3830112).

Almost surely, 2^140406352 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 140406352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153204480).

140406352 is an abundant number, since it is smaller than the sum of its proper divisors (166002608).

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

140406352 is a wasteful number, since it uses less digits than its factorization.

140406352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 140406352 is about 11849.3186301998. The cubic root of 140406352 is about 519.7513011929.

The spelling of 140406352 in words is "one hundred forty million, four hundred six thousand, three hundred fifty-two".