249880349402 has 8 divisors (see below), whose sum is σ = 375431978676. Its totient is φ = 124736356512.

The previous prime is 249880349399. The next prime is 249880349473. The reversal of 249880349402 is 204943088942.

249880349402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 234886591801 + 14993757601 = 484651^2 + 122449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101907563 + ... + 101910014.

Almost surely, 2^249880349402 is an apocalyptic number.

249880349402 is a deficient number, since it is larger than the sum of its proper divisors (125551629274).

249880349402 is a wasteful number, since it uses less digits than its factorization.

249880349402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203818192.

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 249880349402 in words is "two hundred forty-nine billion, eight hundred eighty million, three hundred forty-nine thousand, four hundred two".