1024400898 has 64 divisors (see below), whose sum is σ = 2312862720. Its totient is φ = 336047616.

The previous prime is 1024400891. The next prime is 1024400899. The reversal of 1024400898 is 8980044201.

It is not an unprimeable number, because it can be changed into a prime (1024400891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1167636 + ... + 1168512.

It is an arithmetic number, because the mean of its divisors is an integer number (36138480).

Almost surely, 2^1024400898 is an apocalyptic number.

1024400898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1024400898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156431360).

1024400898 is an abundant number, since it is smaller than the sum of its proper divisors (1288461822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1024400898 is a wasteful number, since it uses less digits than its factorization.

1024400898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1024400898 is about 32006.2634182749. The cubic root of 1024400898 is about 1008.0683591679.

The spelling of 1024400898 in words is "one billion, twenty-four million, four hundred thousand, eight hundred ninety-eight".