340021602 has 48 divisors (see below), whose sum is σ = 752150880. Its totient is φ = 110981376.

The previous prime is 340021589. The next prime is 340021613. The reversal of 340021602 is 206120043.

It is a happy number.

340021602 is a `hidden beast` number, since 3 + 40 + 0 + 21 + 602 = 666.

It is a super-2 number, since 2×340021602² = 231229379653292808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 374433 + ... + 375339.

It is an arithmetic number, because the mean of its divisors is an integer number (15669810).

Almost surely, 2^340021602 is an apocalyptic number.

340021602 is an abundant number, since it is smaller than the sum of its proper divisors (412129278).

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

340021602 is a wasteful number, since it uses less digits than its factorization.

340021602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1324 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 340021602 is about 18439.6746717506. The cubic root of 340021602 is about 697.9679859319.

Adding to 340021602 its reverse (206120043), we get a palindrome (546141645).

The spelling of 340021602 in words is "three hundred forty million, twenty-one thousand, six hundred two".