1388854298 has 16 divisors (see below), whose sum is σ = 2263392936. Its totient is φ = 635335680.

The previous prime is 1388854289. The next prime is 1388854303. The reversal of 1388854298 is 8924588831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 134490409 + 1254363889 = 11597^2 + 35417^2 .

It is a super-2 number, since 2×1388854298² = 3857832522146145608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233423 + ... + 239298.

Almost surely, 2^1388854298 is an apocalyptic number.

1388854298 is a deficient number, since it is larger than the sum of its proper divisors (874538638).

1388854298 is a wasteful number, since it uses less digits than its factorization.

1388854298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472849.

The product of its digits is 4423680, while the sum is 56.

The square root of 1388854298 is about 37267.3355366331. The cubic root of 1388854298 is about 1115.7123208811.

It can be divided in two parts, 13888 and 54298, that added together give a palindrome (68186).

The spelling of 1388854298 in words is "one billion, three hundred eighty-eight million, eight hundred fifty-four thousand, two hundred ninety-eight".