40030651 has 8 divisors (see below), whose sum is σ = 40670784. Its totient is φ = 39394440.

The previous prime is 40030609. The next prime is 40030667. The reversal of 40030651 is 15603004.

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

It is a cyclic number.

It is not a de Polignac number, because 40030651 - 2¹³ = 40022459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40030751) 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, 24696 + ... + 26266.

It is an arithmetic number, because the mean of its divisors is an integer number (5083848).

Almost surely, 2^40030651 is an apocalyptic number.

40030651 is a deficient number, since it is larger than the sum of its proper divisors (640133).

40030651 is a wasteful number, since it uses less digits than its factorization.

40030651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40030651 is about 6326.9780306241. The cubic root of 40030651 is about 342.0825211536.

Adding to 40030651 its reverse (15603004), we get a palindrome (55633655).

The spelling of 40030651 in words is "forty million, thirty thousand, six hundred fifty-one".