40135312 has 30 divisors (see below), whose sum is σ = 90459798. Its totient is φ = 17200512.

The previous prime is 40135309. The next prime is 40135313. The reversal of 40135312 is 21353104.

It can be written as a sum of positive squares in only one way, i.e., 23193856 + 16941456 = 4816^2 + 4116^2 .

It is a super-2 number, since 2×40135312² = 3221686538674688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40135312.

It is not an unprimeable number, because it can be changed into a prime (40135313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24813 + ... + 26380.

Almost surely, 2^40135312 is an apocalyptic number.

It is an amenable number.

40135312 is an abundant number, since it is smaller than the sum of its proper divisors (50324486).

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

40135312 is a wasteful number, since it uses less digits than its factorization.

40135312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51215 (or 51202 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40135312 is about 6335.2436417237. The cubic root of 40135312 is about 342.3803890856.

Adding to 40135312 its reverse (21353104), we get a palindrome (61488416).

The spelling of 40135312 in words is "forty million, one hundred thirty-five thousand, three hundred twelve".