40303964 has 6 divisors (see below), whose sum is σ = 70531944. Its totient is φ = 20151980.

The previous prime is 40303927. The next prime is 40303969. The reversal of 40303964 is 46930304.

It is a happy number.

It is a super-2 number, since 2×40303964² = 3248819028226592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5037992 + ... + 5037999.

It is an arithmetic number, because the mean of its divisors is an integer number (11755324).

Almost surely, 2^40303964 is an apocalyptic number.

It is an amenable number.

40303964 is a deficient number, since it is larger than the sum of its proper divisors (30227980).

40303964 is a wasteful number, since it uses less digits than its factorization.

40303964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075995 (or 10075993 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 40303964 is about 6348.5403046685. The cubic root of 40303964 is about 342.8592894376.

The spelling of 40303964 in words is "forty million, three hundred three thousand, nine hundred sixty-four".