340357198 has 4 divisors (see below), whose sum is σ = 510535800. Its totient is φ = 170178598.

The previous prime is 340357181. The next prime is 340357249. The reversal of 340357198 is 891753043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891753043 = 47 ⋅18973469.

It is a super-2 number, since 2×340357198² = 231686044460822408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340357198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85089298 + ... + 85089301.

It is an arithmetic number, because the mean of its divisors is an integer number (127633950).

Almost surely, 2^340357198 is an apocalyptic number.

340357198 is a deficient number, since it is larger than the sum of its proper divisors (170178602).

340357198 is a wasteful number, since it uses less digits than its factorization.

340357198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170178601.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 340357198 is about 18448.7722626737. The cubic root of 340357198 is about 698.1975382534.

The spelling of 340357198 in words is "three hundred forty million, three hundred fifty-seven thousand, one hundred ninety-eight".