340521498 has 12 divisors (see below), whose sum is σ = 737796618. Its totient is φ = 113507160.

The previous prime is 340521487. The next prime is 340521529. The reversal of 340521498 is 894125043.

340521498 is a `hidden beast` number, since 3 + 40 + 521 + 4 + 98 = 666.

It can be written as a sum of positive squares in only one way, i.e., 336098889 + 4422609 = 18333^2 + 2103^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9458913 + ... + 9458948.

Almost surely, 2^340521498 is an apocalyptic number.

340521498 is an abundant number, since it is smaller than the sum of its proper divisors (397275120).

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

340521498 is a wasteful number, since it uses less digits than its factorization.

340521498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18917869 (or 18917866 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 340521498 is about 18453.2245962596. The cubic root of 340521498 is about 698.3098667156.

The spelling of 340521498 in words is "three hundred forty million, five hundred twenty-one thousand, four hundred ninety-eight".