42400413 has 24 divisors (see below), whose sum is σ = 67055040. Its totient is φ = 25604160.

The previous prime is 42400411. The next prime is 42400427. The reversal of 42400413 is 31400424.

It is not a de Polignac number, because 42400413 - 2¹ = 42400411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34945 + ... + 36137.

It is an arithmetic number, because the mean of its divisors is an integer number (2793960).

Almost surely, 2^42400413 is an apocalyptic number.

It is an amenable number.

42400413 is a deficient number, since it is larger than the sum of its proper divisors (24654627).

42400413 is a wasteful number, since it uses less digits than its factorization.

42400413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42400413 is about 6511.5599513481. The cubic root of 42400413 is about 348.7038124365.

Adding to 42400413 its reverse (31400424), we get a palindrome (73800837).

The spelling of 42400413 in words is "forty-two million, four hundred thousand, four hundred thirteen".