140001378 has 32 divisors (see below), whose sum is σ = 312567552. Its totient is φ = 41437200.

The previous prime is 140001359. The next prime is 140001401. The reversal of 140001378 is 873100041.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21828 + ... + 27503.

It is an arithmetic number, because the mean of its divisors is an integer number (9767736).

Almost surely, 2^140001378 is an apocalyptic number.

140001378 is an abundant number, since it is smaller than the sum of its proper divisors (172566174).

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

140001378 is a wasteful number, since it uses less digits than its factorization.

140001378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49390.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 140001378 is about 11832.2177971841. The cubic root of 140001378 is about 519.2511138121.

The spelling of 140001378 in words is "one hundred forty million, one thousand, three hundred seventy-eight".