42047470 has 16 divisors (see below), whose sum is σ = 78127488. Its totient is φ = 16276320.

The previous prime is 42047459. The next prime is 42047479. The reversal of 42047470 is 7474024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42047479) 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, 67509 + ... + 68128.

It is an arithmetic number, because the mean of its divisors is an integer number (4882968).

Almost surely, 2^42047470 is an apocalyptic number.

42047470 is a deficient number, since it is larger than the sum of its proper divisors (36080018).

42047470 is a wasteful number, since it uses less digits than its factorization.

42047470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135675.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 42047470 is about 6484.4020541604. The cubic root of 42047470 is about 347.7335731062.

The spelling of 42047470 in words is "forty-two million, forty-seven thousand, four hundred seventy".