40201144 has 8 divisors (see below), whose sum is σ = 75377160. Its totient is φ = 20100568.

The previous prime is 40201103. The next prime is 40201157. The reversal of 40201144 is 44110204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40201144² = 3232263957817472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512564 + ... + 2512579.

It is an arithmetic number, because the mean of its divisors is an integer number (9422145).

Almost surely, 2^40201144 is an apocalyptic number.

It is an amenable number.

40201144 is a deficient number, since it is larger than the sum of its proper divisors (35176016).

40201144 is a wasteful number, since it uses less digits than its factorization.

40201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025149 (or 5025145 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40201144 is about 6340.4372088997. The cubic root of 40201144 is about 342.5674834616.

Adding to 40201144 its reverse (44110204), we get a palindrome (84311348).

The spelling of 40201144 in words is "forty million, two hundred one thousand, one hundred forty-four".