40451146 has 4 divisors (see below), whose sum is σ = 60676722. Its totient is φ = 20225572.

The previous prime is 40451093. The next prime is 40451153. The reversal of 40451146 is 64115404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26471025 + 13980121 = 5145^2 + 3739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40451146.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112785 + ... + 10112788.

Almost surely, 2^40451146 is an apocalyptic number.

40451146 is a deficient number, since it is larger than the sum of its proper divisors (20225576).

40451146 is a wasteful number, since it uses less digits than its factorization.

40451146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20225575.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40451146 is about 6360.1215397192. The cubic root of 40451146 is about 343.2761335780.

The spelling of 40451146 in words is "forty million, four hundred fifty-one thousand, one hundred forty-six".