340487469 has 64 divisors (see below), whose sum is σ = 609607680. Its totient is φ = 185912496.

The previous prime is 340487443. The next prime is 340487473. The reversal of 340487469 is 964784043.

It is not a de Polignac number, because 340487469 - 2⁷ = 340487341 is a prime.

It is a super-2 number, since 2×340487469² = 231863433092051922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340487479) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351624 + ... + 352590.

It is an arithmetic number, because the mean of its divisors is an integer number (9525120).

Almost surely, 2^340487469 is an apocalyptic number.

It is an amenable number.

340487469 is a deficient number, since it is larger than the sum of its proper divisors (269120211).

340487469 is an frugal number, since it uses more digits than its factorization.

340487469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 340487469 is about 18452.3025392497. The cubic root of 340487469 is about 698.2866047696.

The spelling of 340487469 in words is "three hundred forty million, four hundred eighty-seven thousand, four hundred sixty-nine".