140217384 has 64 divisors (see below), whose sum is σ = 367286400. Its totient is φ = 44523776.

The previous prime is 140217379. The next prime is 140217409. The reversal of 140217384 is 483712041.

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 15 ways as a sum of consecutive naturals, for example, 214402 + ... + 215054.

It is an arithmetic number, because the mean of its divisors is an integer number (5738850).

Almost surely, 2^140217384 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 140217384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183643200).

140217384 is an abundant number, since it is smaller than the sum of its proper divisors (227069016).

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

140217384 is a wasteful number, since it uses less digits than its factorization.

140217384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 140217384 is about 11841.3421536581. The cubic root of 140217384 is about 519.5180248075.

The spelling of 140217384 in words is "one hundred forty million, two hundred seventeen thousand, three hundred eighty-four".