40706530 has 8 divisors (see below), whose sum is σ = 73271772. Its totient is φ = 16282608.

The previous prime is 40706461. The next prime is 40706557. The reversal of 40706530 is 3560704.

It can be written as a sum of positive squares in 2 ways, for example, as 40666129 + 40401 = 6377^2 + 201^2 .

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 = 40706495 and 40706504.

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, 2035317 + ... + 2035336.

Almost surely, 2^40706530 is an apocalyptic number.

40706530 is a deficient number, since it is larger than the sum of its proper divisors (32565242).

40706530 is a wasteful number, since it uses less digits than its factorization.

40706530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070660.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40706530 is about 6380.1669257160. The cubic root of 40706530 is about 343.9970310272.

The spelling of 40706530 in words is "forty million, seven hundred six thousand, five hundred thirty".