40249700 has 36 divisors (see below), whose sum is σ = 89481252. Its totient is φ = 15705600.

The previous prime is 40249697. The next prime is 40249711. The reversal of 40249700 is 794204.

It can be written as a sum of positive squares in 6 ways, for example, as 206116 + 40043584 = 454^2 + 6328^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40249700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809 + ... + 9008.

Almost surely, 2^40249700 is an apocalyptic number.

It is an amenable number.

40249700 is an abundant number, since it is smaller than the sum of its proper divisors (49231552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40249700 is a wasteful number, since it uses less digits than its factorization.

40249700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872 (or 9865 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40249700 is about 6344.2651268685. The cubic root of 40249700 is about 342.7053486455.

The spelling of 40249700 in words is "forty million, two hundred forty-nine thousand, seven hundred".