40489964 has 6 divisors (see below), whose sum is σ = 70857444. Its totient is φ = 20244980.

The previous prime is 40489957. The next prime is 40489987. The reversal of 40489964 is 46998404.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061242 + ... + 5061249.

It is an arithmetic number, because the mean of its divisors is an integer number (11809574).

Almost surely, 2^40489964 is an apocalyptic number.

It is an amenable number.

40489964 is a deficient number, since it is larger than the sum of its proper divisors (30367480).

40489964 is a wasteful number, since it uses less digits than its factorization.

40489964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122495 (or 10122493 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 40489964 is about 6363.1724791962. The cubic root of 40489964 is about 343.3859041210.

The spelling of 40489964 in words is "forty million, four hundred eighty-nine thousand, nine hundred sixty-four".