40068782446 has 48 divisors (see below), whose sum is σ = 77522417712. Its totient is φ = 15355267200.

The previous prime is 40068782423. The next prime is 40068782461. The reversal of 40068782446 is 64428786004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 40068782446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238911 + ... + 370426.

It is an arithmetic number, because the mean of its divisors is an integer number (1615050369).

Almost surely, 2^40068782446 is an apocalyptic number.

40068782446 is a deficient number, since it is larger than the sum of its proper divisors (37453635266).

40068782446 is a wasteful number, since it uses less digits than its factorization.

40068782446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609425 (or 609418 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 40068782446 in words is "forty billion, sixty-eight million, seven hundred eighty-two thousand, four hundred forty-six".