240140429 has 2 divisors, whose sum is σ = 240140430. Its totient is φ = 240140428.

The previous prime is 240140359. The next prime is 240140491. The reversal of 240140429 is 924041042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171217225 + 68923204 = 13085^2 + 8302^2 .

It is a cyclic number.

It is not a de Polignac number, because 240140429 - 2¹² = 240136333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240140398 and 240140407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240140129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120070214 + 120070215.

It is an arithmetic number, because the mean of its divisors is an integer number (120070215).

Almost surely, 2^240140429 is an apocalyptic number.

It is an amenable number.

240140429 is a deficient number, since it is larger than the sum of its proper divisors (1).

240140429 is an equidigital number, since it uses as much as digits as its factorization.

240140429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 240140429 is about 15496.4650485199. The cubic root of 240140429 is about 621.5676846564.

The spelling of 240140429 in words is "two hundred forty million, one hundred forty thousand, four hundred twenty-nine".