30785401 has 4 divisors (see below), whose sum is σ = 30908304. Its totient is φ = 30662500.

The previous prime is 30785389. The next prime is 30785411. The reversal of 30785401 is 10458703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10458703 = 271 ⋅38593.

It is a cyclic number.

It is not a de Polignac number, because 30785401 - 2⁹ = 30784889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30785401.

It is not an unprimeable number, because it can be changed into a prime (30785411) 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, 61075 + ... + 61576.

It is an arithmetic number, because the mean of its divisors is an integer number (7727076).

Almost surely, 2^30785401 is an apocalyptic number.

It is an amenable number.

30785401 is a deficient number, since it is larger than the sum of its proper divisors (122903).

30785401 is a wasteful number, since it uses less digits than its factorization.

30785401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122902.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30785401 is about 5548.4593357075. The cubic root of 30785401 is about 313.4115074550.

The spelling of 30785401 in words is "thirty million, seven hundred eighty-five thousand, four hundred one".