40400002292 has 36 divisors (see below), whose sum is σ = 76577047596. Its totient is φ = 18641226240.

The previous prime is 40400002289. The next prime is 40400002301. The reversal of 40400002292 is 29220000404.

It can be written as a sum of positive squares in 6 ways, for example, as 430396516 + 39969605776 = 20746^2 + 199924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4238492 + ... + 4248012.

It is an arithmetic number, because the mean of its divisors is an integer number (2127140211).

Almost surely, 2^40400002292 is an apocalyptic number.

It is an amenable number.

40400002292 is a deficient number, since it is larger than the sum of its proper divisors (36177045304).

40400002292 is a wasteful number, since it uses less digits than its factorization.

40400002292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15828 (or 15813 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40400002292 its reverse (29220000404), we get a palindrome (69620002696).

The spelling of 40400002292 in words is "forty billion, four hundred million, two thousand, two hundred ninety-two".