40458859 has 12 divisors (see below), whose sum is σ = 47487384. Its totient is φ = 34367424.

The previous prime is 40458811. The next prime is 40458877. The reversal of 40458859 is 95885404.

It is a happy number.

It is not a de Polignac number, because 40458859 - 2⁹ = 40458347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40458259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1884 + ... + 9190.

It is an arithmetic number, because the mean of its divisors is an integer number (3957282).

Almost surely, 2^40458859 is an apocalyptic number.

40458859 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40458859 is a deficient number, since it is larger than the sum of its proper divisors (7028525).

40458859 is a wasteful number, since it uses less digits than its factorization.

40458859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7434 (or 7427 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 40458859 is about 6360.7278671548. The cubic root of 40458859 is about 343.2979501874.

The spelling of 40458859 in words is "forty million, four hundred fifty-eight thousand, eight hundred fifty-nine".