30146942 has 16 divisors (see below), whose sum is σ = 53348352. Its totient is φ = 12503160.

The previous prime is 30146917. The next prime is 30146947. The reversal of 30146942 is 24964103.

It is a super-2 number, since 2×30146942² = 1817676223902728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30146947) 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, 34298 + ... + 35165.

It is an arithmetic number, because the mean of its divisors is an integer number (3334272).

Almost surely, 2^30146942 is an apocalyptic number.

30146942 is a deficient number, since it is larger than the sum of its proper divisors (23201410).

30146942 is a wasteful number, since it uses less digits than its factorization.

30146942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69503.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30146942 is about 5490.6230976092. The cubic root of 30146942 is about 311.2297389541.

The spelling of 30146942 in words is "thirty million, one hundred forty-six thousand, nine hundred forty-two".