30461478 has 8 divisors (see below), whose sum is σ = 60922968. Its totient is φ = 10153824.

The previous prime is 30461447. The next prime is 30461479. The reversal of 30461478 is 87416403.

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

30461478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30461479) 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, 2538451 + ... + 2538462.

It is an arithmetic number, because the mean of its divisors is an integer number (7615371).

Almost surely, 2^30461478 is an apocalyptic number.

30461478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30461478 is a wasteful number, since it uses less digits than its factorization.

30461478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076918.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 30461478 is about 5519.1917886589. The cubic root of 30461478 is about 312.3083941163.

The spelling of 30461478 in words is "thirty million, four hundred sixty-one thousand, four hundred seventy-eight".