42012010 has 32 divisors (see below), whose sum is σ = 78647760. Its totient is φ = 16138752.

The previous prime is 42011993. The next prime is 42012017. The reversal of 42012010 is 1021024.

It can be written as a sum of positive squares in 8 ways, for example, as 15705369 + 26306641 = 3963^2 + 5129^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (42012017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91702 + ... + 92158.

Almost surely, 2^42012010 is an apocalyptic number.

42012010 is a deficient number, since it is larger than the sum of its proper divisors (36635750).

42012010 is a wasteful number, since it uses less digits than its factorization.

42012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 42012010 is about 6481.6672237936. The cubic root of 42012010 is about 347.6357939342.

Adding to 42012010 its reverse (1021024), we get a palindrome (43033034).

The spelling of 42012010 in words is "forty-two million, twelve thousand, ten".