340239998 has 8 divisors (see below), whose sum is σ = 583268592. Its totient is φ = 145817136.

The previous prime is 340239997. The next prime is 340240001. The reversal of 340239998 is 899932043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×340239998³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340239997) 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, 12151415 + ... + 12151442.

It is an arithmetic number, because the mean of its divisors is an integer number (72908574).

Almost surely, 2^340239998 is an apocalyptic number.

340239998 is a deficient number, since it is larger than the sum of its proper divisors (243028594).

340239998 is a wasteful number, since it uses less digits than its factorization.

340239998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24302866.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 340239998 is about 18445.5956260566. The cubic root of 340239998 is about 698.1173889806.

The spelling of 340239998 in words is "three hundred forty million, two hundred thirty-nine thousand, nine hundred ninety-eight".