1398454455 has 16 divisors (see below), whose sum is σ = 2240272224. Its totient is φ = 744927360.

The previous prime is 1398454433. The next prime is 1398454457. The reversal of 1398454455 is 5544548931.

It is not a de Polignac number, because 1398454455 - 2¹² = 1398450359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398454457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44464 + ... + 69093.

It is an arithmetic number, because the mean of its divisors is an integer number (140017014).

Almost surely, 2^1398454455 is an apocalyptic number.

1398454455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1398454455 is a deficient number, since it is larger than the sum of its proper divisors (841817769).

1398454455 is a wasteful number, since it uses less digits than its factorization.

1398454455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114386.

The product of its digits is 1728000, while the sum is 48.

The square root of 1398454455 is about 37395.9149507002. The cubic root of 1398454455 is about 1118.2771276207.

The spelling of 1398454455 in words is "one billion, three hundred ninety-eight million, four hundred fifty-four thousand, four hundred fifty-five".