42401011 has 4 divisors (see below), whose sum is σ = 43435224. Its totient is φ = 41366800.

The previous prime is 42400991. The next prime is 42401033. The reversal of 42401011 is 11010424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42401011 - 2¹⁵ = 42368243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42400982 and 42401000.

It is not an unprimeable number, because it can be changed into a prime (42401071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517045 + ... + 517126.

It is an arithmetic number, because the mean of its divisors is an integer number (10858806).

Almost surely, 2^42401011 is an apocalyptic number.

42401011 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42401011 is a deficient number, since it is larger than the sum of its proper divisors (1034213).

42401011 is a wasteful number, since it uses less digits than its factorization.

42401011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034212.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 42401011 is about 6511.6058695225. The cubic root of 42401011 is about 348.7054517594.

Adding to 42401011 its reverse (11010424), we get a palindrome (53411435).

The spelling of 42401011 in words is "forty-two million, four hundred one thousand, eleven".