40940261570 has 32 divisors (see below), whose sum is σ = 80089233840. Its totient is φ = 14977716480.

The previous prime is 40940261563. The next prime is 40940261581. The reversal of 40940261570 is 7516204904.

It is a Cunningham number, because it is equal to 202337²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 14738688409 + 26201573161 = 121403^2 + 161869^2 .

It is a super-2 number, since 2×40940261570² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430441 + ... + 1458780.

Almost surely, 2^40940261570 is an apocalyptic number.

40940261570 is a deficient number, since it is larger than the sum of its proper divisors (39148972270).

40940261570 is a wasteful number, since it uses less digits than its factorization.

40940261570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889350.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 40940261570 in words is "forty billion, nine hundred forty million, two hundred sixty-one thousand, five hundred seventy".