40949964 has 36 divisors (see below), whose sum is σ = 112923720. Its totient is φ = 12408960.

The previous prime is 40949941. The next prime is 40949969. The reversal of 40949964 is 46994904.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (40949969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51309 + ... + 52100.

It is an arithmetic number, because the mean of its divisors is an integer number (3136770).

Almost surely, 2^40949964 is an apocalyptic number.

40949964 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40949964 is an abundant number, since it is smaller than the sum of its proper divisors (71973756).

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

40949964 is a wasteful number, since it uses less digits than its factorization.

40949964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103430 (or 103425 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 40949964 is about 6399.2158894665. The cubic root of 40949964 is about 344.6813945812.

The spelling of 40949964 in words is "forty million, nine hundred forty-nine thousand, nine hundred sixty-four".