40019260 has 12 divisors (see below), whose sum is σ = 84040488. Its totient is φ = 16007696.

The previous prime is 40019251. The next prime is 40019261. The reversal of 40019260 is 6291004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40019261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000462 + ... + 1000501.

It is an arithmetic number, because the mean of its divisors is an integer number (7003374).

Almost surely, 2^40019260 is an apocalyptic number.

It is an amenable number.

40019260 is an abundant number, since it is smaller than the sum of its proper divisors (44021228).

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

40019260 is a wasteful number, since it uses less digits than its factorization.

40019260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000972 (or 2000970 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 40019260 is about 6326.0777737869. The cubic root of 40019260 is about 342.0500707557.

The spelling of 40019260 in words is "forty million, nineteen thousand, two hundred sixty".