42473805 has 32 divisors (see below), whose sum is σ = 75409920. Its totient is φ = 20239680.

The previous prime is 42473789. The next prime is 42473807. The reversal of 42473805 is 50837424.

It is not a de Polignac number, because 42473805 - 2⁴ = 42473789 is a prime.

It is a super-2 number, since 2×42473805² = 3608048222356050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42473807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7554 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (2356560).

Almost surely, 2^42473805 is an apocalyptic number.

It is an amenable number.

42473805 is a deficient number, since it is larger than the sum of its proper divisors (32936115).

42473805 is a wasteful number, since it uses less digits than its factorization.

42473805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42473805 is about 6517.1930307457. The cubic root of 42473805 is about 348.9048900250.

The spelling of 42473805 in words is "forty-two million, four hundred seventy-three thousand, eight hundred five".