340102440 has 48 divisors (see below), whose sum is σ = 1105334100. Its totient is φ = 90693888.

The previous prime is 340102423. The next prime is 340102453. The reversal of 340102440 is 44201043.

It can be written as a sum of positive squares in 2 ways, for example, as 328116996 + 11985444 = 18114^2 + 3462^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472005 + ... + 472724.

Almost surely, 2^340102440 is an apocalyptic number.

340102440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340102440 is an abundant number, since it is smaller than the sum of its proper divisors (765231660).

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

340102440 is a wasteful number, since it uses less digits than its factorization.

340102440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944746 (or 944739 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 340102440 is about 18441.8664998964. The cubic root of 340102440 is about 698.0232940505.

Adding to 340102440 its reverse (44201043), we get a palindrome (384303483).

The spelling of 340102440 in words is "three hundred forty million, one hundred two thousand, four hundred forty".