40190021740 has 36 divisors (see below), whose sum is σ = 92769204528. Its totient is φ = 14614552480.

The previous prime is 40190021723. The next prime is 40190021743. The reversal of 40190021740 is 4712009104.

It is a junction number, because it is equal to n+sod(n) for n = 40190021699 and 40190021708.

It is not an unprimeable number, because it can be changed into a prime (40190021743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8301304 + ... + 8306143.

It is an arithmetic number, because the mean of its divisors is an integer number (2576922348).

Almost surely, 2^40190021740 is an apocalyptic number.

It is an amenable number.

40190021740 is an abundant number, since it is smaller than the sum of its proper divisors (52579182788).

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

40190021740 is a wasteful number, since it uses less digits than its factorization.

40190021740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16607478 (or 16607465 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 40190021740 in words is "forty billion, one hundred ninety million, twenty-one thousand, seven hundred forty".