40990125 has 64 divisors (see below), whose sum is σ = 78474240. Its totient is φ = 18792000.

The previous prime is 40990123. The next prime is 40990129. The reversal of 40990125 is 52109904.

It is a happy number.

It is not a de Polignac number, because 40990125 - 2¹ = 40990123 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40990092 and 40990101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40990121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78114 + ... + 78636.

It is an arithmetic number, because the mean of its divisors is an integer number (1226160).

Almost surely, 2^40990125 is an apocalyptic number.

It is an amenable number.

40990125 is a deficient number, since it is larger than the sum of its proper divisors (37484115).

40990125 is a wasteful number, since it uses less digits than its factorization.

40990125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 40990125 is about 6402.3530830469. The cubic root of 40990125 is about 344.7940379575.

The spelling of 40990125 in words is "forty million, nine hundred ninety thousand, one hundred twenty-five".