199407388 has 12 divisors (see below), whose sum is σ = 349064632. Its totient is φ = 99674640.

The previous prime is 199407379. The next prime is 199407419. The reversal of 199407388 is 883704991.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17743 + ... + 26713.

Almost surely, 2^199407388 is an apocalyptic number.

It is an amenable number.

199407388 is a deficient number, since it is larger than the sum of its proper divisors (149657244).

199407388 is a wasteful number, since it uses less digits than its factorization.

199407388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14532 (or 14530 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 199407388 is about 14121.1680819966. The cubic root of 199407388 is about 584.2253735445.

The spelling of 199407388 in words is "one hundred ninety-nine million, four hundred seven thousand, three hundred eighty-eight".