40356970 has 8 divisors (see below), whose sum is σ = 72642564. Its totient is φ = 16142784.

The previous prime is 40356959. The next prime is 40356971. The reversal of 40356970 is 7965304.

It can be written as a sum of positive squares in 2 ways, for example, as 40030929 + 326041 = 6327^2 + 571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40356971) 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, 2017839 + ... + 2017858.

Almost surely, 2^40356970 is an apocalyptic number.

40356970 is a deficient number, since it is larger than the sum of its proper divisors (32285594).

40356970 is a wasteful number, since it uses less digits than its factorization.

40356970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035704.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 40356970 is about 6352.7135934182. The cubic root of 40356970 is about 343.0095280781.

The spelling of 40356970 in words is "forty million, three hundred fifty-six thousand, nine hundred seventy".