40401892 has 24 divisors (see below), whose sum is σ = 75583872. Its totient is φ = 18849600.

The previous prime is 40401887. The next prime is 40401913. The reversal of 40401892 is 29810404.

It is a self number, because there is not a number n which added to its sum of digits gives 40401892.

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, 1584 + ... + 9127.

It is an arithmetic number, because the mean of its divisors is an integer number (3149328).

Almost surely, 2^40401892 is an apocalyptic number.

It is an amenable number.

40401892 is a deficient number, since it is larger than the sum of its proper divisors (35181980).

40401892 is a wasteful number, since it uses less digits than its factorization.

40401892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10779 (or 10777 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40401892 is about 6356.2482645032. The cubic root of 40401892 is about 343.1367507143.

The spelling of 40401892 in words is "forty million, four hundred one thousand, eight hundred ninety-two".