30990401 has 8 divisors (see below), whose sum is σ = 34151040. Its totient is φ = 27940752.

The previous prime is 30990397. The next prime is 30990403. The reversal of 30990401 is 10409903.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30990401 - 2² = 30990397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30990403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27161 + ... + 28278.

It is an arithmetic number, because the mean of its divisors is an integer number (4268880).

Almost surely, 2^30990401 is an apocalyptic number.

It is an amenable number.

30990401 is a deficient number, since it is larger than the sum of its proper divisors (3160639).

30990401 is a wasteful number, since it uses less digits than its factorization.

30990401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55495.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 30990401 is about 5566.9022804429. The cubic root of 30990401 is about 314.1056381146.

The spelling of 30990401 in words is "thirty million, nine hundred ninety thousand, four hundred one".