40145032 has 8 divisors (see below), whose sum is σ = 75271950. Its totient is φ = 20072512.

The previous prime is 40145023. The next prime is 40145059. The reversal of 40145032 is 23054104.

It can be written as a sum of positive squares in only one way, i.e., 20484676 + 19660356 = 4526^2 + 4434^2 .

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

It is a super-2 number, since 2×40145032² = 3223247188562048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509057 + ... + 2509072.

Almost surely, 2^40145032 is an apocalyptic number.

It is an amenable number.

40145032 is a deficient number, since it is larger than the sum of its proper divisors (35126918).

40145032 is a wasteful number, since it uses less digits than its factorization.

40145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018135 (or 5018131 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40145032 is about 6336.0107323141. The cubic root of 40145032 is about 342.4080261679.

Adding to 40145032 its reverse (23054104), we get a palindrome (63199136).

The spelling of 40145032 in words is "forty million, one hundred forty-five thousand, thirty-two".