40023011 has 16 divisors (see below), whose sum is σ = 48135360. Its totient is φ = 32555520.

The previous prime is 40023007. The next prime is 40023041. The reversal of 40023011 is 11032004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40023011 - 2² = 40023007 is a prime.

It is a super-2 number, since 2×40023011² = 3203682819012242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40022983 and 40023001.

It is not an unprimeable number, because it can be changed into a prime (40023041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8735 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (3008460).

Almost surely, 2^40023011 is an apocalyptic number.

40023011 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40023011 is a deficient number, since it is larger than the sum of its proper divisors (8112349).

40023011 is a wasteful number, since it uses less digits than its factorization.

40023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40023011 is about 6326.3742380608. The cubic root of 40023011 is about 342.0607571913.

Adding to 40023011 its reverse (11032004), we get a palindrome (51055015).

The spelling of 40023011 in words is "forty million, twenty-three thousand, eleven".