4257023540 has 192 divisors, whose sum is σ = 12008521728. Its totient is φ = 1227916800.

The previous prime is 4257023539. The next prime is 4257023557. The reversal of 4257023540 is 453207524.

It is a super-2 number, since 2×4257023540² = 36244498840228263200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4257023497 and 4257023506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1096082 + ... + 1099958.

It is an arithmetic number, because the mean of its divisors is an integer number (62544384).

Almost surely, 2^4257023540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4257023540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6004260864).

4257023540 is an abundant number, since it is smaller than the sum of its proper divisors (7751498188).

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

4257023540 is a wasteful number, since it uses less digits than its factorization.

4257023540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958 (or 3956 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 4257023540 is about 65245.8699076041. The cubic root of 4257023540 is about 1620.6977053609.

The spelling of 4257023540 in words is "four billion, two hundred fifty-seven million, twenty-three thousand, five hundred forty".