40130442 has 24 divisors (see below), whose sum is σ = 94854240. Its totient is φ = 12160680.

The previous prime is 40130429. The next prime is 40130471. The reversal of 40130442 is 24403104.

It is a super-2 number, since 2×40130442² = 3220904750230728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101142 + ... + 101537.

It is an arithmetic number, because the mean of its divisors is an integer number (3952260).

Almost surely, 2^40130442 is an apocalyptic number.

40130442 is an abundant number, since it is smaller than the sum of its proper divisors (54723798).

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

40130442 is a wasteful number, since it uses less digits than its factorization.

40130442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202698 (or 202695 counting only the distinct ones).

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

The square root of 40130442 is about 6334.8592723122. The cubic root of 40130442 is about 342.3665404333.

Adding to 40130442 its reverse (24403104), we get a palindrome (64533546).

The spelling of 40130442 in words is "forty million, one hundred thirty thousand, four hundred forty-two".