40070961 has 24 divisors (see below), whose sum is σ = 67239744. Its totient is φ = 22520160.

The previous prime is 40070959. The next prime is 40070999. The reversal of 40070961 is 16907004.

It is not a de Polignac number, because 40070961 - 2¹ = 40070959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40070951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371 + ... + 9056.

It is an arithmetic number, because the mean of its divisors is an integer number (2801656).

Almost surely, 2^40070961 is an apocalyptic number.

It is an amenable number.

40070961 is a deficient number, since it is larger than the sum of its proper divisors (27168783).

40070961 is a wasteful number, since it uses less digits than its factorization.

40070961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501 (or 10498 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 40070961 is about 6330.1627941152. The cubic root of 40070961 is about 342.1973058677.

Adding to 40070961 its reverse (16907004), we get a palindrome (56977965).

The spelling of 40070961 in words is "forty million, seventy thousand, nine hundred sixty-one".