40023030 has 16 divisors (see below), whose sum is σ = 96055344. Its totient is φ = 10672800.

The previous prime is 40023007. The next prime is 40023041. The reversal of 40023030 is 3032004.

It is a junction number, because it is equal to n+sod(n) for n = 40022997 and 40023015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667021 + ... + 667080.

It is an arithmetic number, because the mean of its divisors is an integer number (6003459).

Almost surely, 2^40023030 is an apocalyptic number.

40023030 is an abundant number, since it is smaller than the sum of its proper divisors (56032314).

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

40023030 is a wasteful number, since it uses less digits than its factorization.

40023030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334111.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 40023030 is about 6326.3757397107. The cubic root of 40023030 is about 342.0608113198.

Adding to 40023030 its reverse (3032004), we get a palindrome (43055034).

The spelling of 40023030 in words is "forty million, twenty-three thousand, thirty".