40026040 has 16 divisors (see below), whose sum is σ = 90058680. Its totient is φ = 16010400.

The previous prime is 40026031. The next prime is 40026073. The reversal of 40026040 is 4062004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500286 + ... + 500365.

Almost surely, 2^40026040 is an apocalyptic number.

40026040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40026040 is an abundant number, since it is smaller than the sum of its proper divisors (50032640).

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

40026040 is a wasteful number, since it uses less digits than its factorization.

40026040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000662 (or 1000658 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40026040 is about 6326.6136281584. The cubic root of 40026040 is about 342.0693861930.

Adding to 40026040 its reverse (4062004), we get a palindrome (44088044).

The spelling of 40026040 in words is "forty million, twenty-six thousand, forty".