30399394 has 8 divisors (see below), whose sum is σ = 45680940. Its totient is φ = 15172416.

The previous prime is 30399377. The next prime is 30399401. The reversal of 30399394 is 49399303.

It can be written as a sum of positive squares in 2 ways, for example, as 29844369 + 555025 = 5463^2 + 745^2 .

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

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, 12219 + ... + 14494.

Almost surely, 2^30399394 is an apocalyptic number.

30399394 is a deficient number, since it is larger than the sum of its proper divisors (15281546).

30399394 is a wasteful number, since it uses less digits than its factorization.

30399394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27284.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 30399394 is about 5513.5645457363. The cubic root of 30399394 is about 312.0960763177.

It can be divided in two parts, 30 and 399394, that added together give a square (399424 = 632²).

The spelling of 30399394 in words is "thirty million, three hundred ninety-nine thousand, three hundred ninety-four".