140408380 has 24 divisors (see below), whose sum is σ = 336980448. Its totient is φ = 48139968.

The previous prime is 140408351. The next prime is 140408381. The reversal of 140408380 is 83804041.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140408381) 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, 501319 + ... + 501598.

It is an arithmetic number, because the mean of its divisors is an integer number (14040852).

Almost surely, 2^140408380 is an apocalyptic number.

140408380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140408380 is an abundant number, since it is smaller than the sum of its proper divisors (196572068).

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

140408380 is a wasteful number, since it uses less digits than its factorization.

140408380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002933 (or 1002931 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 140408380 is about 11849.4042044315. The cubic root of 140408380 is about 519.7538035739.

The spelling of 140408380 in words is "one hundred forty million, four hundred eight thousand, three hundred eighty".