340002440 has 16 divisors (see below), whose sum is σ = 765005580. Its totient is φ = 136000960.

The previous prime is 340002437. The next prime is 340002449. The reversal of 340002440 is 44200043.

It can be written as a sum of positive squares in 2 ways, for example, as 320624836 + 19377604 = 17906^2 + 4402^2 .

It is a super-4 number, since 4×340002440⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (340002449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4249991 + ... + 4250070.

Almost surely, 2^340002440 is an apocalyptic number.

It is an amenable number.

340002440 is an abundant number, since it is smaller than the sum of its proper divisors (425003140).

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

340002440 is a wasteful number, since it uses less digits than its factorization.

340002440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500072 (or 8500068 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 340002440 is about 18439.1550782567. The cubic root of 340002440 is about 697.9548743004.

Adding to 340002440 its reverse (44200043), we get a palindrome (384202483).

The spelling of 340002440 in words is "three hundred forty million, two thousand, four hundred forty".