40134784 has 16 divisors (see below), whose sum is σ = 79956270. Its totient is φ = 20067328.

The previous prime is 40134779. The next prime is 40134791. The reversal of 40134784 is 48743104.

It can be written as a sum of positive squares in only one way, i.e., 26296384 + 13838400 = 5128^2 + 3720^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×40134784² = 3221601773453312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156649 + ... + 156904.

Almost surely, 2^40134784 is an apocalyptic number.

It is an amenable number.

40134784 is a deficient number, since it is larger than the sum of its proper divisors (39821486).

40134784 is an equidigital number, since it uses as much as digits as its factorization.

40134784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313567 (or 313555 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40134784 is about 6335.2019699454. The cubic root of 40134784 is about 342.3788876842.

Adding to 40134784 its reverse (48743104), we get a palindrome (88877888).

The spelling of 40134784 in words is "forty million, one hundred thirty-four thousand, seven hundred eighty-four".