140404379 has 2 divisors, whose sum is σ = 140404380. Its totient is φ = 140404378.

The previous prime is 140404361. The next prime is 140404387. The reversal of 140404379 is 973404041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140404379 - 2¹² = 140400283 is a prime.

It is not a weakly prime, because it can be changed into another prime (140404079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70202189 + 70202190.

It is an arithmetic number, because the mean of its divisors is an integer number (70202190).

Almost surely, 2^140404379 is an apocalyptic number.

140404379 is a deficient number, since it is larger than the sum of its proper divisors (1).

140404379 is an equidigital number, since it uses as much as digits as its factorization.

140404379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 140404379 is about 11849.2353761751. The cubic root of 140404379 is about 519.7488666541.

The spelling of 140404379 in words is "one hundred forty million, four hundred four thousand, three hundred seventy-nine".