40126331 has 8 divisors (see below), whose sum is σ = 46977504. Its totient is φ = 33554880.

The previous prime is 40126319. The next prime is 40126337. The reversal of 40126331 is 13362104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40126331 - 2¹⁰ = 40125307 is a prime.

It is a super-2 number, since 2×40126331² = 3220244879043122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40126337) 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, 69620 + ... + 70193.

It is an arithmetic number, because the mean of its divisors is an integer number (5872188).

Almost surely, 2^40126331 is an apocalyptic number.

40126331 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40126331 is a deficient number, since it is larger than the sum of its proper divisors (6851173).

40126331 is a wasteful number, since it uses less digits than its factorization.

40126331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139861.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 40126331 is about 6334.5347895485. The cubic root of 40126331 is about 342.3548492512.

Adding to 40126331 its reverse (13362104), we get a palindrome (53488435).

The spelling of 40126331 in words is "forty million, one hundred twenty-six thousand, three hundred thirty-one".