40325144 has 24 divisors (see below), whose sum is σ = 79804260. Its totient is φ = 19100016.

The previous prime is 40325137. The next prime is 40325147. The reversal of 40325144 is 44152304.

It is a super-2 number, since 2×40325144² = 3252234477241472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40325147) 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, 4094 + ... + 9869.

Almost surely, 2^40325144 is an apocalyptic number.

It is an amenable number.

40325144 is a deficient number, since it is larger than the sum of its proper divisors (39479116).

40325144 is a wasteful number, since it uses less digits than its factorization.

40325144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14007 (or 13984 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40325144 is about 6350.2081855637. The cubic root of 40325144 is about 342.9193371961.

Adding to 40325144 its reverse (44152304), we get a palindrome (84477448).

The spelling of 40325144 in words is "forty million, three hundred twenty-five thousand, one hundred forty-four".