42734730 has 32 divisors (see below), whose sum is σ = 103529664. Its totient is φ = 11288576.

The previous prime is 42734723. The next prime is 42734779. The reversal of 42734730 is 3743724.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3447 + ... + 9866.

It is an arithmetic number, because the mean of its divisors is an integer number (3235302).

Almost surely, 2^42734730 is an apocalyptic number.

42734730 is an abundant number, since it is smaller than the sum of its proper divisors (60794934).

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

42734730 is a wasteful number, since it uses less digits than its factorization.

42734730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13430.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 42734730 is about 6537.1805849311. The cubic root of 42734730 is about 349.6178959240.

The spelling of 42734730 in words is "forty-two million, seven hundred thirty-four thousand, seven hundred thirty".