1898463436 has 24 divisors (see below), whose sum is σ = 3464859776. Its totient is φ = 909135360.

The previous prime is 1898463431. The next prime is 1898463449. The reversal of 1898463436 is 6343648981.

It is a super-4 number, since 4×1898463436⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1898463431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66891 + ... + 90946.

Almost surely, 2^1898463436 is an apocalyptic number.

It is an amenable number.

1898463436 is a deficient number, since it is larger than the sum of its proper divisors (1566396340).

1898463436 is a wasteful number, since it uses less digits than its factorization.

1898463436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157969 (or 157967 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 1898463436 is about 43571.3602725460. The cubic root of 1898463436 is about 1238.2283570776.

The spelling of 1898463436 in words is "one billion, eight hundred ninety-eight million, four hundred sixty-three thousand, four hundred thirty-six".