40730355 has 72 divisors (see below), whose sum is σ = 77641200. Its totient is φ = 19721856.

The previous prime is 40730329. The next prime is 40730359. The reversal of 40730355 is 55303704.

It is a happy number.

It is not a de Polignac number, because 40730355 - 2⁸ = 40730099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40730359) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 690316 + ... + 690374.

It is an arithmetic number, because the mean of its divisors is an integer number (1078350).

Almost surely, 2^40730355 is an apocalyptic number.

40730355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40730355 is a deficient number, since it is larger than the sum of its proper divisors (36910845).

40730355 is a wasteful number, since it uses less digits than its factorization.

40730355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 40730355 is about 6382.0337667549. The cubic root of 40730355 is about 344.0641302603.

The spelling of 40730355 in words is "forty million, seven hundred thirty thousand, three hundred fifty-five".