1398254794 has 32 divisors (see below), whose sum is σ = 2279923200. Its totient is φ = 640620288.

The previous prime is 1398254791. The next prime is 1398254797. The reversal of 1398254794 is 4974528931.

It is an interprime number because it is at equal distance from previous prime (1398254791) and next prime (1398254797).

It is not an unprimeable number, because it can be changed into a prime (1398254791) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 315804 + ... + 320200.

It is an arithmetic number, because the mean of its divisors is an integer number (71247600).

Almost surely, 2^1398254794 is an apocalyptic number.

1398254794 is a deficient number, since it is larger than the sum of its proper divisors (881668406).

1398254794 is a wasteful number, since it uses less digits than its factorization.

1398254794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

The product of its digits is 2177280, while the sum is 52.

The square root of 1398254794 is about 37393.2452991179. The cubic root of 1398254794 is about 1118.2239053043.

The spelling of 1398254794 in words is "one billion, three hundred ninety-eight million, two hundred fifty-four thousand, seven hundred ninety-four".