498155842 has 4 divisors (see below), whose sum is σ = 747233766. Its totient is φ = 249077920.

The previous prime is 498155839. The next prime is 498155843. The reversal of 498155842 is 248551894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248551894 = 2 ⋅124275947.

It can be written as a sum of positive squares in only one way, i.e., 331203601 + 166952241 = 18199^2 + 12921^2 .

It is a junction number, because it is equal to n+sod(n) for n = 498155792 and 498155801.

It is not an unprimeable number, because it can be changed into a prime (498155843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124538959 + ... + 124538962.

Almost surely, 2^498155842 is an apocalyptic number.

498155842 is a deficient number, since it is larger than the sum of its proper divisors (249077924).

498155842 is a wasteful number, since it uses less digits than its factorization.

498155842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249077923.

The product of its digits is 460800, while the sum is 46.

The square root of 498155842 is about 22319.4050547948. The cubic root of 498155842 is about 792.7235177096.

The spelling of 498155842 in words is "four hundred ninety-eight million, one hundred fifty-five thousand, eight hundred forty-two".