40258770 has 64 divisors (see below), whose sum is σ = 101274624. Its totient is φ = 10229760.

The previous prime is 40258733. The next prime is 40258781. The reversal of 40258770 is 7785204.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67594 + ... + 68186.

It is an arithmetic number, because the mean of its divisors is an integer number (1582416).

Almost surely, 2^40258770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40258770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50637312).

40258770 is an abundant number, since it is smaller than the sum of its proper divisors (61015854).

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

40258770 is a wasteful number, since it uses less digits than its factorization.

40258770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 40258770 is about 6344.9799054055. The cubic root of 40258770 is about 342.7310888296.

The spelling of 40258770 in words is "forty million, two hundred fifty-eight thousand, seven hundred seventy".