40019204000 has 48 divisors (see below), whose sum is σ = 98327194056. Its totient is φ = 16007680000.

The previous prime is 40019203949. The next prime is 40019204003. The reversal of 40019204000 is 40291004.

It can be written as a sum of positive squares in 4 ways, for example, as 10016807056 + 30002396944 = 100084^2 + 173212^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (40019204003) 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, 4998401 + ... + 5006400.

Almost surely, 2^40019204000 is an apocalyptic number.

40019204000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40019204000 is an abundant number, since it is smaller than the sum of its proper divisors (58307990056).

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

40019204000 is a wasteful number, since it uses less digits than its factorization.

40019204000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004826 (or 10004808 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 40019204000 its reverse (40291004), we get a palindrome (40059495004).

The spelling of 40019204000 in words is "forty billion, nineteen million, two hundred four thousand".