40001516 has 6 divisors (see below), whose sum is σ = 70002660. Its totient is φ = 20000756.

The previous prime is 40001509. The next prime is 40001519. The reversal of 40001516 is 61510004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40001494 and 40001503.

It is not an unprimeable number, because it can be changed into a prime (40001519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000186 + ... + 5000193.

It is an arithmetic number, because the mean of its divisors is an integer number (11667110).

Almost surely, 2^40001516 is an apocalyptic number.

It is an amenable number.

40001516 is a deficient number, since it is larger than the sum of its proper divisors (30001144).

40001516 is a wasteful number, since it uses less digits than its factorization.

40001516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000383 (or 10000381 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 40001516 is about 6324.6751695245. The cubic root of 40001516 is about 341.9995098200. Note that the first 3 decimals are identical.

The spelling of 40001516 in words is "forty million, one thousand, five hundred sixteen".