40660554 has 16 divisors (see below), whose sum is σ = 88714080. Its totient is φ = 12321360.

The previous prime is 40660547. The next prime is 40660559. The reversal of 40660554 is 45506604.

40660554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40660559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307969 + ... + 308100.

It is an arithmetic number, because the mean of its divisors is an integer number (5544630).

Almost surely, 2^40660554 is an apocalyptic number.

40660554 is an abundant number, since it is smaller than the sum of its proper divisors (48053526).

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

40660554 is a wasteful number, since it uses less digits than its factorization.

40660554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616085.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 40660554 is about 6376.5628672507. The cubic root of 40660554 is about 343.8674730623.

It can be divided in two parts, 40660 and 554, that added together give a palindrome (41214).

The spelling of 40660554 in words is "forty million, six hundred sixty thousand, five hundred fifty-four".