42919734 has 32 divisors (see below), whose sum is σ = 100848384. Its totient is φ = 12005280.

The previous prime is 42919729. The next prime is 42919753. The reversal of 42919734 is 43791924.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42919692 and 42919701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24154 + ... + 25869.

It is an arithmetic number, because the mean of its divisors is an integer number (3151512).

Almost surely, 2^42919734 is an apocalyptic number.

42919734 is an abundant number, since it is smaller than the sum of its proper divisors (57928650).

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

42919734 is a wasteful number, since it uses less digits than its factorization.

42919734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50052.

The product of its digits is 54432, while the sum is 39.

The square root of 42919734 is about 6551.3154404287. The cubic root of 42919734 is about 350.1216828603.

The spelling of 42919734 in words is "forty-two million, nine hundred nineteen thousand, seven hundred thirty-four".