1478844998 has 4 divisors (see below), whose sum is σ = 2218267500. Its totient is φ = 739422498.

The previous prime is 1478844923. The next prime is 1478845051. The reversal of 1478844998 is 8994488741.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1478844998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369711248 + ... + 369711251.

It is an arithmetic number, because the mean of its divisors is an integer number (554566875).

Almost surely, 2^1478844998 is an apocalyptic number.

1478844998 is a deficient number, since it is larger than the sum of its proper divisors (739422502).

1478844998 is an equidigital number, since it uses as much as digits as its factorization.

1478844998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739422501.

The product of its digits is 18579456, while the sum is 62.

The square root of 1478844998 is about 38455.7537697547. The cubic root of 1478844998 is about 1139.3073143969.

The spelling of 1478844998 in words is "one billion, four hundred seventy-eight million, eight hundred forty-four thousand, nine hundred ninety-eight".