40231648 has 12 divisors (see below), whose sum is σ = 79206120. Its totient is φ = 20115808.

The previous prime is 40231637. The next prime is 40231651. The reversal of 40231648 is 84613204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628588 + ... + 628651.

It is an arithmetic number, because the mean of its divisors is an integer number (6600510).

Almost surely, 2^40231648 is an apocalyptic number.

It is an amenable number.

40231648 is a deficient number, since it is larger than the sum of its proper divisors (38974472).

40231648 is a wasteful number, since it uses less digits than its factorization.

40231648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257249 (or 1257241 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40231648 is about 6342.8422651048. The cubic root of 40231648 is about 342.6541065073.

It can be divided in two parts, 4023 and 1648, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 40231648 in words is "forty million, two hundred thirty-one thousand, six hundred forty-eight".