340021410 has 16 divisors (see below), whose sum is σ = 816051456. Its totient is φ = 90672368.

The previous prime is 340021393. The next prime is 340021411. The reversal of 340021410 is 14120043.

It is a super-2 number, since 2×340021410² = 231229118516776200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 340021410.

It is not an unprimeable number, because it can be changed into a prime (340021411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5666994 + ... + 5667053.

It is an arithmetic number, because the mean of its divisors is an integer number (51003216).

Almost surely, 2^340021410 is an apocalyptic number.

340021410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340021410 is an abundant number, since it is smaller than the sum of its proper divisors (476030046).

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

340021410 is a wasteful number, since it uses less digits than its factorization.

340021410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334057.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 340021410 is about 18439.6694655842. The cubic root of 340021410 is about 697.9678545580.

Adding to 340021410 its reverse (14120043), we get a palindrome (354141453).

The spelling of 340021410 in words is "three hundred forty million, twenty-one thousand, four hundred ten".