40533730 has 8 divisors (see below), whose sum is σ = 72960732. Its totient is φ = 16213488.

The previous prime is 40533719. The next prime is 40533737. The reversal of 40533730 is 3733504.

It can be written as a sum of positive squares in 2 ways, for example, as 38675961 + 1857769 = 6219^2 + 1363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40533695 and 40533704.

It is not an unprimeable number, because it can be changed into a prime (40533737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2026677 + ... + 2026696.

Almost surely, 2^40533730 is an apocalyptic number.

40533730 is a deficient number, since it is larger than the sum of its proper divisors (32427002).

40533730 is a wasteful number, since it uses less digits than its factorization.

40533730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053380.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 40533730 is about 6366.6105582170. The cubic root of 40533730 is about 343.5095826361.

The spelling of 40533730 in words is "forty million, five hundred thirty-three thousand, seven hundred thirty".