40238488 has 8 divisors (see below), whose sum is σ = 75447180. Its totient is φ = 20119240.

The previous prime is 40238479. The next prime is 40238489. The reversal of 40238488 is 88483204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40238488² = 3238271833052288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514898 + ... + 2514913.

Almost surely, 2^40238488 is an apocalyptic number.

It is an amenable number.

40238488 is a deficient number, since it is larger than the sum of its proper divisors (35208692).

40238488 is a wasteful number, since it uses less digits than its factorization.

40238488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029817 (or 5029813 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 40238488 is about 6343.3814326430. The cubic root of 40238488 is about 342.6735242327.

The spelling of 40238488 in words is "forty million, two hundred thirty-eight thousand, four hundred eighty-eight".