40263146 has 32 divisors (see below), whose sum is σ = 76733568. Its totient is φ = 15387840.

The previous prime is 40263127. The next prime is 40263149. The reversal of 40263146 is 64136204.

It is a super-2 number, since 2×40263146² = 3242241851634632, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40263149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5696 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (2397924).

Almost surely, 2^40263146 is an apocalyptic number.

40263146 is a deficient number, since it is larger than the sum of its proper divisors (36470422).

40263146 is a wasteful number, since it uses less digits than its factorization.

40263146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40263146 is about 6345.3247355829. The cubic root of 40263146 is about 342.7435063054.

The spelling of 40263146 in words is "forty million, two hundred sixty-three thousand, one hundred forty-six".