40994128 has 20 divisors (see below), whose sum is σ = 90772960. Its totient is φ = 17568864.

The previous prime is 40994111. The next prime is 40994131. The reversal of 40994128 is 82149904.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182898 + ... + 183121.

It is an arithmetic number, because the mean of its divisors is an integer number (4538648).

Almost surely, 2^40994128 is an apocalyptic number.

It is an amenable number.

40994128 is an abundant number, since it is smaller than the sum of its proper divisors (49778832).

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

40994128 is a wasteful number, since it uses less digits than its factorization.

40994128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366034 (or 366028 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 40994128 is about 6402.6656948493. The cubic root of 40994128 is about 344.8052615193.

The spelling of 40994128 in words is "forty million, nine hundred ninety-four thousand, one hundred twenty-eight".