40000351 has 4 divisors (see below), whose sum is σ = 40176792. Its totient is φ = 39823912.

The previous prime is 40000349. The next prime is 40000361. The reversal of 40000351 is 15300004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40000351 - 2¹ = 40000349 is a prime.

It is a Duffinian number.

40000351 is a modest number, since divided by 351 gives 40 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40000321) 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, 87880 + ... + 88333.

It is an arithmetic number, because the mean of its divisors is an integer number (10044198).

Almost surely, 2^40000351 is an apocalyptic number.

40000351 is a deficient number, since it is larger than the sum of its proper divisors (176441).

40000351 is a wasteful number, since it uses less digits than its factorization.

40000351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176440.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 40000351 is about 6324.5830692624. The cubic root of 40000351 is about 341.9961896683.

Adding to 40000351 its reverse (15300004), we get a palindrome (55300355).

The spelling of 40000351 in words is "forty million, three hundred fifty-one", and thus it is an aban number.