40425544 has 8 divisors (see below), whose sum is σ = 75797910. Its totient is φ = 20212768.

The previous prime is 40425533. The next prime is 40425557. The reversal of 40425544 is 44552404.

It can be written as a sum of positive squares in only one way, i.e., 38912644 + 1512900 = 6238^2 + 1230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526589 + ... + 2526604.

Almost surely, 2^40425544 is an apocalyptic number.

It is an amenable number.

40425544 is a deficient number, since it is larger than the sum of its proper divisors (35372366).

40425544 is a wasteful number, since it uses less digits than its factorization.

40425544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053199 (or 5053195 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 40425544 is about 6358.1085237671. The cubic root of 40425544 is about 343.2036971436.

Adding to 40425544 its reverse (44552404), we get a palindrome (84977948).

The spelling of 40425544 in words is "forty million, four hundred twenty-five thousand, five hundred forty-four".