40303925 has 6 divisors (see below), whose sum is σ = 49976898. Its totient is φ = 32243120.

The previous prime is 40303919. The next prime is 40303927. The reversal of 40303925 is 52930304.

It can be written as a sum of positive squares in 3 ways, for example, as 6280036 + 34023889 = 2506^2 + 5833^2 .

It is not a de Polignac number, because 40303925 - 2¹⁰ = 40302901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40303894 and 40303903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303927) 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, 806054 + ... + 806103.

It is an arithmetic number, because the mean of its divisors is an integer number (8329483).

Almost surely, 2^40303925 is an apocalyptic number.

It is an amenable number.

40303925 is a deficient number, since it is larger than the sum of its proper divisors (9672973).

40303925 is a wasteful number, since it uses less digits than its factorization.

40303925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612167 (or 1612162 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 40303925 is about 6348.5372330955. The cubic root of 40303925 is about 342.8591788487.

The spelling of 40303925 in words is "forty million, three hundred three thousand, nine hundred twenty-five".