340989402 has 16 divisors (see below), whose sum is σ = 734438880. Its totient is φ = 104919792.

The previous prime is 340989391. The next prime is 340989427. The reversal of 340989402 is 204989043.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185752 + ... + 2185907.

It is an arithmetic number, because the mean of its divisors is an integer number (45902430).

Almost surely, 2^340989402 is an apocalyptic number.

340989402 is an abundant number, since it is smaller than the sum of its proper divisors (393449478).

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

340989402 is a wasteful number, since it uses less digits than its factorization.

340989402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371677.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 340989402 is about 18465.8983534514. The cubic root of 340989402 is about 698.6295650208.

The spelling of 340989402 in words is "three hundred forty million, nine hundred eighty-nine thousand, four hundred two".