30586942 has 16 divisors (see below), whose sum is σ = 47526912. Its totient is φ = 14754040.

The previous prime is 30586937. The next prime is 30586949. The reversal of 30586942 is 24968503.

It is a super-2 number, since 2×30586942² = 1871122041822728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30586949) 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, 4383 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (2970432).

Almost surely, 2^30586942 is an apocalyptic number.

30586942 is a deficient number, since it is larger than the sum of its proper divisors (16939970).

30586942 is a wasteful number, since it uses less digits than its factorization.

30586942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 30586942 is about 5530.5462659669. The cubic root of 30586942 is about 312.7365828728.

It can be divided in two parts, 3058 and 6942, that added together give a 4-th power (10000 = 10⁴).

The spelling of 30586942 in words is "thirty million, five hundred eighty-six thousand, nine hundred forty-two".