40356730 has 16 divisors (see below), whose sum is σ = 74985984. Its totient is φ = 15621840.

The previous prime is 40356721. The next prime is 40356731. The reversal of 40356730 is 3765304.

It is not an unprimeable number, because it can be changed into a prime (40356731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64782 + ... + 65401.

It is an arithmetic number, because the mean of its divisors is an integer number (4686624).

Almost surely, 2^40356730 is an apocalyptic number.

40356730 is a deficient number, since it is larger than the sum of its proper divisors (34629254).

40356730 is a wasteful number, since it uses less digits than its factorization.

40356730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130221.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 40356730 is about 6352.6947038245. The cubic root of 40356730 is about 343.0088481258.

The spelling of 40356730 in words is "forty million, three hundred fifty-six thousand, seven hundred thirty".