42470745 has 16 divisors (see below), whose sum is σ = 68332992. Its totient is φ = 22524480.

The previous prime is 42470723. The next prime is 42470759. The reversal of 42470745 is 54707424.

It is not a de Polignac number, because 42470745 - 2¹¹ = 42468697 is a prime.

It is a Curzon 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, 5107 + ... + 10536.

It is an arithmetic number, because the mean of its divisors is an integer number (4270812).

Almost surely, 2^42470745 is an apocalyptic number.

It is an amenable number.

42470745 is a deficient number, since it is larger than the sum of its proper divisors (25862247).

42470745 is a wasteful number, since it uses less digits than its factorization.

42470745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 42470745 is about 6516.9582628708. The cubic root of 42470745 is about 348.8965109420.

The spelling of 42470745 in words is "forty-two million, four hundred seventy thousand, seven hundred forty-five".