30477142 has 8 divisors (see below), whose sum is σ = 45968832. Its totient is φ = 15154200.

The previous prime is 30477137. The next prime is 30477143. The reversal of 30477142 is 24177403.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30477142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30477143) 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, 41734 + ... + 42457.

It is an arithmetic number, because the mean of its divisors is an integer number (5746104).

Almost surely, 2^30477142 is an apocalyptic number.

30477142 is a deficient number, since it is larger than the sum of its proper divisors (15491690).

30477142 is a wasteful number, since it uses less digits than its factorization.

30477142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84374.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 30477142 is about 5520.6106546287. The cubic root of 30477142 is about 312.3619170215.

The spelling of 30477142 in words is "thirty million, four hundred seventy-seven thousand, one hundred forty-two".