698328540 has 288 divisors, whose sum is σ = 2705364480. Its totient is φ = 147246336.

The previous prime is 698328539. The next prime is 698328541. The reversal of 698328540 is 45823896.

698328540 is a `hidden beast` number, since 6 + 9 + 83 + 28 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (698328539) and next prime (698328541).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698328541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 441471 + ... + 443049.

Almost surely, 2^698328540 is an apocalyptic number.

698328540 is a gapful number since it is divisible by the number (60) 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 698328540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352682240).

698328540 is an abundant number, since it is smaller than the sum of its proper divisors (2007035940).

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

698328540 is a wasteful number, since it uses less digits than its factorization.

698328540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 698328540 is about 26425.9066069643. The cubic root of 698328540 is about 887.1967261075.

The spelling of 698328540 in words is "six hundred ninety-eight million, three hundred twenty-eight thousand, five hundred forty".