42401810 has 16 divisors (see below), whose sum is σ = 83261952. Its totient is φ = 15418800.

The previous prime is 42401803. The next prime is 42401813. The reversal of 42401810 is 1810424.

It is a super-2 number, since 2×42401810² = 3595826982552200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42401813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192626 + ... + 192845.

It is an arithmetic number, because the mean of its divisors is an integer number (5203872).

Almost surely, 2^42401810 is an apocalyptic number.

42401810 is a deficient number, since it is larger than the sum of its proper divisors (40860142).

42401810 is a wasteful number, since it uses less digits than its factorization.

42401810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385489.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 42401810 is about 6511.6672212268. The cubic root of 42401810 is about 348.7076420680.

The spelling of 42401810 in words is "forty-two million, four hundred one thousand, eight hundred ten".