40837840490 has 32 divisors (see below), whose sum is σ = 75328084944. Its totient is φ = 15930984960.

The previous prime is 40837840457. The next prime is 40837840493. The reversal of 40837840490 is 9404873804.

It can be written as a sum of positive squares in 8 ways, for example, as 28307053009 + 12530787481 = 168247^2 + 111941^2 .

It is not an unprimeable number, because it can be changed into a prime (40837840493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228772 + ... + 1261568.

Almost surely, 2^40837840490 is an apocalyptic number.

40837840490 is a deficient number, since it is larger than the sum of its proper divisors (34490244454).

40837840490 is a wasteful number, since it uses less digits than its factorization.

40837840490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35882.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 40837840490 in words is "forty billion, eight hundred thirty-seven million, eight hundred forty thousand, four hundred ninety".