40145124 has 48 divisors (see below), whose sum is σ = 97284096. Its totient is φ = 12871200.

The previous prime is 40145113. The next prime is 40145167. The reversal of 40145124 is 42154104.

It is a happy number.

It is a super-2 number, since 2×40145124² = 3223261961950752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40145124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115519 + ... + 115865.

It is an arithmetic number, because the mean of its divisors is an integer number (2026752).

Almost surely, 2^40145124 is an apocalyptic number.

It is an amenable number.

40145124 is an abundant number, since it is smaller than the sum of its proper divisors (57138972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40145124 is a wasteful number, since it uses less digits than its factorization.

40145124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40145124 is about 6336.0179923987. The cubic root of 40145124 is about 342.4082877321.

Adding to 40145124 its reverse (42154104), we get a palindrome (82299228).

The spelling of 40145124 in words is "forty million, one hundred forty-five thousand, one hundred twenty-four".