42400006 has 32 divisors (see below), whose sum is σ = 74517408. Its totient is φ = 17879040.

The previous prime is 42399983. The next prime is 42400009. The reversal of 42400006 is 60000424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400009) 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, 26526 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (2328669).

Almost surely, 2^42400006 is an apocalyptic number.

42400006 is a deficient number, since it is larger than the sum of its proper divisors (32117402).

42400006 is a wasteful number, since it uses less digits than its factorization.

42400006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42400006 is about 6511.5286991612. The cubic root of 42400006 is about 348.7026967013.

The spelling of 42400006 in words is "forty-two million, four hundred thousand, six".