40787379 has 6 divisors (see below), whose sum is σ = 58915116. Its totient is φ = 27191580.

The previous prime is 40787377. The next prime is 40787381. The reversal of 40787379 is 97378704.

It is an interprime number because it is at equal distance from previous prime (40787377) and next prime (40787381).

It is not a de Polignac number, because 40787379 - 2¹ = 40787377 is a prime.

It is a super-2 number, since 2×40787379² = 3327220571379282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40787377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2265957 + ... + 2265974.

It is an arithmetic number, because the mean of its divisors is an integer number (9819186).

Almost surely, 2^40787379 is an apocalyptic number.

40787379 is a deficient number, since it is larger than the sum of its proper divisors (18127737).

40787379 is a wasteful number, since it uses less digits than its factorization.

40787379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531937 (or 4531934 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 40787379 is about 6386.4997455570. The cubic root of 40787379 is about 344.2246228779.

The spelling of 40787379 in words is "forty million, seven hundred eighty-seven thousand, three hundred seventy-nine".