40921140 has 96 divisors (see below), whose sum is σ = 128814336. Its totient is φ = 9630720.

The previous prime is 40921081. The next prime is 40921171. The reversal of 40921140 is 4112904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16800 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (1341816).

Almost surely, 2^40921140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40921140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64407168).

40921140 is an abundant number, since it is smaller than the sum of its proper divisors (87893196).

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

40921140 is a wasteful number, since it uses less digits than its factorization.

40921140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 40921140 is about 6396.9633420866. The cubic root of 40921140 is about 344.6005037614.

The spelling of 40921140 in words is "forty million, nine hundred twenty-one thousand, one hundred forty".