1498478258 has 4 divisors (see below), whose sum is σ = 2247717390. Its totient is φ = 749239128.

The previous prime is 1498478257. The next prime is 1498478321. The reversal of 1498478258 is 8528748941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8528748941 = 13619 ⋅626239.

It can be written as a sum of positive squares in only one way, i.e., 1482019009 + 16459249 = 38497^2 + 4057^2 .

It is not an unprimeable number, because it can be changed into a prime (1498478257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374619563 + ... + 374619566.

Almost surely, 2^1498478258 is an apocalyptic number.

1498478258 is a deficient number, since it is larger than the sum of its proper divisors (749239132).

1498478258 is an equidigital number, since it uses as much as digits as its factorization.

1498478258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749239131.

The product of its digits is 5160960, while the sum is 56.

The square root of 1498478258 is about 38710.1828722108. The cubic root of 1498478258 is about 1144.3270094105.

The spelling of 1498478258 in words is "one billion, four hundred ninety-eight million, four hundred seventy-eight thousand, two hundred fifty-eight".