4151540 has 24 divisors (see below), whose sum is σ = 8763552. Its totient is φ = 1652000.

The previous prime is 4151533. The next prime is 4151549. The reversal of 4151540 is 451514.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4151549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4607 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

Almost surely, 2^4151540 is an apocalyptic number.

It is an amenable number.

4151540 is an abundant number, since it is smaller than the sum of its proper divisors (4612012).

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

4151540 is a wasteful number, since it uses less digits than its factorization.

4151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 4151540 is about 2037.5328218215. The cubic root of 4151540 is about 160.7199328292.

The spelling of 4151540 in words is "four million, one hundred fifty-one thousand, five hundred forty".