40420364403544 has 16 divisors (see below), whose sum is σ = 75788256074400. Its totient is φ = 20210162783712.

The previous prime is 40420364403533. The next prime is 40420364403547. The reversal of 40420364403544 is 44530446302404.

It is a self number, because there is not a number n which added to its sum of digits gives 40420364403544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420364403547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10418529 + ... + 13761775.

It is an arithmetic number, because the mean of its divisors is an integer number (4736766004650).

Almost surely, 2^{40420364403544} is an apocalyptic number.

It is an amenable number.

40420364403544 is a deficient number, since it is larger than the sum of its proper divisors (35367891670856).

40420364403544 is a wasteful number, since it uses less digits than its factorization.

40420364403544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854522 (or 4854518 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 43.

The spelling of 40420364403544 in words is "forty trillion, four hundred twenty billion, three hundred sixty-four million, four hundred three thousand, five hundred forty-four".