40042410 has 16 divisors (see below), whose sum is σ = 96101856. Its totient is φ = 10677968.

The previous prime is 40042397. The next prime is 40042411. The reversal of 40042410 is 1424004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40042410.

It is not an unprimeable number, because it can be changed into a prime (40042411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667344 + ... + 667403.

It is an arithmetic number, because the mean of its divisors is an integer number (6006366).

Almost surely, 2^40042410 is an apocalyptic number.

40042410 is an abundant number, since it is smaller than the sum of its proper divisors (56059446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40042410 is a wasteful number, since it uses less digits than its factorization.

40042410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334757.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40042410 is about 6327.9072369939. The cubic root of 40042410 is about 342.1160134440.

Adding to 40042410 its reverse (1424004), we get a palindrome (41466414).

The spelling of 40042410 in words is "forty million, forty-two thousand, four hundred ten".