40780158 has 32 divisors (see below), whose sum is σ = 84460320. Its totient is φ = 13117440.

The previous prime is 40780133. The next prime is 40780171. The reversal of 40780158 is 85108704.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23008 + ... + 24716.

It is an arithmetic number, because the mean of its divisors is an integer number (2639385).

Almost surely, 2^40780158 is an apocalyptic number.

40780158 is an abundant number, since it is smaller than the sum of its proper divisors (43680162).

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

40780158 is a wasteful number, since it uses less digits than its factorization.

40780158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 40780158 is about 6385.9343873861. The cubic root of 40780158 is about 344.2043078298.

The spelling of 40780158 in words is "forty million, seven hundred eighty thousand, one hundred fifty-eight".