42708930 has 128 divisors (see below), whose sum is σ = 123918336. Its totient is φ = 9292800.

The previous prime is 42708929. The next prime is 42708931. The reversal of 42708930 is 3980724.

It is an interprime number because it is at equal distance from previous prime (42708929) and next prime (42708931).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 42708891 and 42708900.

It is not an unprimeable number, because it can be changed into a prime (42708931) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128865 + ... + 129195.

It is an arithmetic number, because the mean of its divisors is an integer number (968112).

Almost surely, 2^42708930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42708930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61959168).

42708930 is an abundant number, since it is smaller than the sum of its proper divisors (81209406).

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

42708930 is a wasteful number, since it uses less digits than its factorization.

42708930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 42708930 is about 6535.2069592324. The cubic root of 42708930 is about 349.5475241402.

The spelling of 42708930 in words is "forty-two million, seven hundred eight thousand, nine hundred thirty".