40521054 has 16 divisors (see below), whose sum is σ = 92619648. Its totient is φ = 11577432.

The previous prime is 40521037. The next prime is 40521109. The reversal of 40521054 is 45012504.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40521054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482352 + ... + 482435.

It is an arithmetic number, because the mean of its divisors is an integer number (5788728).

Almost surely, 2^40521054 is an apocalyptic number.

40521054 is an abundant number, since it is smaller than the sum of its proper divisors (52098594).

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

40521054 is a wasteful number, since it uses less digits than its factorization.

40521054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964799.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40521054 is about 6365.6149742189. The cubic root of 40521054 is about 343.4737706390.

Adding to 40521054 its reverse (45012504), we get a palindrome (85533558).

The spelling of 40521054 in words is "forty million, five hundred twenty-one thousand, fifty-four".