140849408 has 72 divisors (see below), whose sum is σ = 327595968. Its totient is φ = 59185152.

The previous prime is 140849407. The next prime is 140849411. The reversal of 140849408 is 804948041.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (140849407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94235 + ... + 95717.

It is an arithmetic number, because the mean of its divisors is an integer number (4549944).

Almost surely, 2^140849408 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 140849408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163797984).

140849408 is an abundant number, since it is smaller than the sum of its proper divisors (186746560).

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

140849408 is an equidigital number, since it uses as much as digits as its factorization.

140849408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 140849408 is about 11867.9993259184. Note that the first 3 decimals coincide. The cubic root of 140849408 is about 520.2974235391.

The spelling of 140849408 in words is "one hundred forty million, eight hundred forty-nine thousand, four hundred eight".