4157240 has 32 divisors (see below), whose sum is σ = 9575280. Its totient is φ = 1623552.

The previous prime is 4157239. The next prime is 4157269. The reversal of 4157240 is 427514.

4157240 = T₇₃₇ + T₇₃₈ + ... + T₇₅₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 2928.

Almost surely, 2^4157240 is an apocalyptic number.

4157240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4157240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4787640).

4157240 is an abundant number, since it is smaller than the sum of its proper divisors (5418040).

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

4157240 is a wasteful number, since it uses less digits than its factorization.

4157240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4157240 is about 2038.9310925090. The cubic root of 4157240 is about 160.7934545160.

The spelling of 4157240 in words is "four million, one hundred fifty-seven thousand, two hundred forty".