40401146144 has 12 divisors (see below), whose sum is σ = 79539756534. Its totient is φ = 20200573056.

The previous prime is 40401146143. The next prime is 40401146173. The reversal of 40401146144 is 44164110404.

It can be written as a sum of positive squares in only one way, i.e., 31492051600 + 8909094544 = 177460^2 + 94388^2 .

It is not an unprimeable number, because it can be changed into a prime (40401146143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631267877 + ... + 631267940.

Almost surely, 2^40401146144 is an apocalyptic number.

It is an amenable number.

40401146144 is a deficient number, since it is larger than the sum of its proper divisors (39138610390).

40401146144 is a wasteful number, since it uses less digits than its factorization.

40401146144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262535827 (or 1262535819 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 40401146144 its reverse (44164110404), we get a palindrome (84565256548).

The spelling of 40401146144 in words is "forty billion, four hundred one million, one hundred forty-six thousand, one hundred forty-four".