40247650 has 48 divisors (see below), whose sum is σ = 79448040. Its totient is φ = 15142400.

The previous prime is 40247639. The next prime is 40247657. The reversal of 40247650 is 5674204.

It can be written as a sum of positive squares in 12 ways, for example, as 4355569 + 35892081 = 2087^2 + 5991^2 .

It is not an unprimeable number, because it can be changed into a prime (40247657) 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, 59112 + ... + 59788.

Almost surely, 2^40247650 is an apocalyptic number.

40247650 is a deficient number, since it is larger than the sum of its proper divisors (39200390).

40247650 is a wasteful number, since it uses less digits than its factorization.

40247650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 40247650 is about 6344.1035615759. The cubic root of 40247650 is about 342.6995303174.

The spelling of 40247650 in words is "forty million, two hundred forty-seven thousand, six hundred fifty".