140471408 has 160 divisors (see below), whose sum is σ = 379261440. Its totient is φ = 48660480.

The previous prime is 140471393. The next prime is 140471413. The reversal of 140471408 is 804174041.

140471408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397760 + ... + 398112.

It is an arithmetic number, because the mean of its divisors is an integer number (2370384).

Almost surely, 2^140471408 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 140471408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189630720).

140471408 is an abundant number, since it is smaller than the sum of its proper divisors (238790032).

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

140471408 is a wasteful number, since it uses less digits than its factorization.

140471408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 140471408 is about 11852.0634490370. The cubic root of 140471408 is about 519.8315628031.

The spelling of 140471408 in words is "one hundred forty million, four hundred seventy-one thousand, four hundred eight".