40137848 has 8 divisors (see below), whose sum is σ = 75258480. Its totient is φ = 20068920.

The previous prime is 40137847. The next prime is 40137857. The reversal of 40137848 is 84873104.

It is a happy number.

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

It is a super-2 number, since 2×40137848² = 3222093684142208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40137841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508608 + ... + 2508623.

It is an arithmetic number, because the mean of its divisors is an integer number (9407310).

Almost surely, 2^40137848 is an apocalyptic number.

It is an amenable number.

40137848 is a deficient number, since it is larger than the sum of its proper divisors (35120632).

40137848 is a wasteful number, since it uses less digits than its factorization.

40137848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017237 (or 5017233 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40137848 is about 6335.4437887176. The cubic root of 40137848 is about 342.3876001784.

The spelling of 40137848 in words is "forty million, one hundred thirty-seven thousand, eight hundred forty-eight".