1398925500 has 192 divisors, whose sum is σ = 4752384000. Its totient is φ = 319636800.

The previous prime is 1398925487. The next prime is 1398925523. The reversal of 1398925500 is 55298931.

1398925500 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 513141 + ... + 515859.

It is an arithmetic number, because the mean of its divisors is an integer number (24752000).

Almost surely, 2^1398925500 is an apocalyptic number.

1398925500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398925500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376192000).

1398925500 is an abundant number, since it is smaller than the sum of its proper divisors (3353458500).

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

1398925500 is a wasteful number, since it uses less digits than its factorization.

1398925500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 1398925500 is about 37402.2125014016. The cubic root of 1398925500 is about 1118.4026709102.

The spelling of 1398925500 in words is "one billion, three hundred ninety-eight million, nine hundred twenty-five thousand, five hundred".