40297396044 has 48 divisors (see below), whose sum is σ = 96666455648. Its totient is φ = 13056173568.

The previous prime is 40297396043. The next prime is 40297396063. The reversal of 40297396044 is 44069379204.

It is a junction number, because it is equal to n+sod(n) for n = 40297395984 and 40297396002.

It is not an unprimeable number, because it can be changed into a prime (40297396043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397152 + ... + 488184.

Almost surely, 2^40297396044 is an apocalyptic number.

It is an amenable number.

40297396044 is an abundant number, since it is smaller than the sum of its proper divisors (56369059604).

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

40297396044 is a wasteful number, since it uses less digits than its factorization.

40297396044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92074 (or 92072 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 40297396044 in words is "forty billion, two hundred ninety-seven million, three hundred ninety-six thousand, forty-four".