40445625146 has 4 divisors (see below), whose sum is σ = 60668437722. Its totient is φ = 20222812572.

The previous prime is 40445625137. The next prime is 40445625163. The reversal of 40445625146 is 64152654404.

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., 20523714121 + 19921911025 = 143261^2 + 141145^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111406285 + ... + 10111406288.

Almost surely, 2^40445625146 is an apocalyptic number.

40445625146 is a deficient number, since it is larger than the sum of its proper divisors (20222812576).

40445625146 is a wasteful number, since it uses less digits than its factorization.

40445625146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222812575.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 40445625146 in words is "forty billion, four hundred forty-five million, six hundred twenty-five thousand, one hundred forty-six".