698245290 has 48 divisors (see below), whose sum is σ = 1827657000. Its totient is φ = 184945536.

The previous prime is 698245283. The next prime is 698245319. The reversal of 698245290 is 92542896.

It can be written as a sum of positive squares in 4 ways, for example, as 562685841 + 135559449 = 23721^2 + 11643^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12625 + ... + 39444.

Almost surely, 2^698245290 is an apocalyptic number.

698245290 is an abundant number, since it is smaller than the sum of its proper divisors (1129411710).

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

698245290 is a wasteful number, since it uses less digits than its factorization.

698245290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52231 (or 52228 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 698245290 is about 26424.3314011916. The cubic root of 698245290 is about 887.1614695110.

The spelling of 698245290 in words is "six hundred ninety-eight million, two hundred forty-five thousand, two hundred ninety".