259400942 has 4 divisors (see below), whose sum is σ = 389101416. Its totient is φ = 129700470.

The previous prime is 259400927. The next prime is 259400951. The reversal of 259400942 is 249004952.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64850234 + ... + 64850237.

It is an arithmetic number, because the mean of its divisors is an integer number (97275354).

Almost surely, 2^259400942 is an apocalyptic number.

259400942 is a deficient number, since it is larger than the sum of its proper divisors (129700474).

259400942 is a wasteful number, since it uses less digits than its factorization.

259400942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129700473.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 259400942 is about 16105.9287841465. The cubic root of 259400942 is about 637.7598618663.

The spelling of 259400942 in words is "two hundred fifty-nine million, four hundred thousand, nine hundred forty-two".