40721054 has 16 divisors (see below), whose sum is σ = 66772080. Its totient is φ = 18471360.

The previous prime is 40721039. The next prime is 40721071. The reversal of 40721054 is 45012704.

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, 10892 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (4173255).

Almost surely, 2^40721054 is an apocalyptic number.

40721054 is a deficient number, since it is larger than the sum of its proper divisors (26051026).

40721054 is a wasteful number, since it uses less digits than its factorization.

40721054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40721054 is about 6381.3050389399. The cubic root of 40721054 is about 344.0379386226.

Adding to 40721054 its reverse (45012704), we get a palindrome (85733758).

The spelling of 40721054 in words is "forty million, seven hundred twenty-one thousand, fifty-four".