40425149 has 4 divisors (see below), whose sum is σ = 40825500. Its totient is φ = 40024800.

The previous prime is 40425113. The next prime is 40425163. The reversal of 40425149 is 94152404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27772900 + 12652249 = 5270^2 + 3557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40425149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200024 + ... + 200225.

It is an arithmetic number, because the mean of its divisors is an integer number (10206375).

Almost surely, 2^40425149 is an apocalyptic number.

It is an amenable number.

40425149 is a deficient number, since it is larger than the sum of its proper divisors (400351).

40425149 is a wasteful number, since it uses less digits than its factorization.

40425149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400350.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40425149 is about 6358.0774609940. The cubic root of 40425149 is about 343.2025793198.

The spelling of 40425149 in words is "forty million, four hundred twenty-five thousand, one hundred forty-nine".