40401146 has 8 divisors (see below), whose sum is σ = 64166580. Its totient is φ = 19012288.

The previous prime is 40401143. The next prime is 40401149. The reversal of 40401146 is 64110404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40401143) and next prime (40401149).

It can be written as a sum of positive squares in 2 ways, for example, as 30129121 + 10272025 = 5489^2 + 3205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40401146² = 3264505196226632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40401143) 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, 594101 + ... + 594168.

Almost surely, 2^40401146 is an apocalyptic number.

40401146 is a deficient number, since it is larger than the sum of its proper divisors (23765434).

40401146 is a wasteful number, since it uses less digits than its factorization.

40401146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188288.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40401146 is about 6356.1895818171. The cubic root of 40401146 is about 343.1346387539.

The spelling of 40401146 in words is "forty million, four hundred one thousand, one hundred forty-six".