40454152 has 16 divisors (see below), whose sum is σ = 80313660. Its totient is φ = 19037184.

The previous prime is 40454137. The next prime is 40454189. The reversal of 40454152 is 25145404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32194276 + 8259876 = 5674^2 + 2874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148593 + ... + 148864.

Almost surely, 2^40454152 is an apocalyptic number.

It is an amenable number.

40454152 is a deficient number, since it is larger than the sum of its proper divisors (39859508).

40454152 is a wasteful number, since it uses less digits than its factorization.

40454152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297480 (or 297476 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 40454152 is about 6360.3578515678. The cubic root of 40454152 is about 343.2846365303.

Adding to 40454152 its reverse (25145404), we get a palindrome (65599556).

The spelling of 40454152 in words is "forty million, four hundred fifty-four thousand, one hundred fifty-two".