42940704 has 96 divisors (see below), whose sum is σ = 119218176. Its totient is φ = 13512960.

The previous prime is 42940697. The next prime is 42940721. The reversal of 42940704 is 40704924.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139719 + ... + 140025.

It is an arithmetic number, because the mean of its divisors is an integer number (1241856).

Almost surely, 2^42940704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42940704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59609088).

42940704 is an abundant number, since it is smaller than the sum of its proper divisors (76277472).

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

42940704 is a wasteful number, since it uses less digits than its factorization.

42940704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 42940704 is about 6552.9156869290. The cubic root of 42940704 is about 350.1786951449.

The spelling of 42940704 in words is "forty-two million, nine hundred forty thousand, seven hundred four".