40052428 has 12 divisors (see below), whose sum is σ = 75483520. Its totient is φ = 18485712.

The previous prime is 40052423. The next prime is 40052429. The reversal of 40052428 is 82425004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40052423) 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, 385068 + ... + 385171.

Almost surely, 2^40052428 is an apocalyptic number.

It is an amenable number.

40052428 is a deficient number, since it is larger than the sum of its proper divisors (35431092).

40052428 is a wasteful number, since it uses less digits than its factorization.

40052428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770256 (or 770254 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40052428 is about 6328.6987604088. The cubic root of 40052428 is about 342.1445418005.

The spelling of 40052428 in words is "forty million, fifty-two thousand, four hundred twenty-eight".