40434894 has 12 divisors (see below), whose sum is σ = 87608976. Its totient is φ = 13478292.

The previous prime is 40434893. The next prime is 40434913. The reversal of 40434894 is 49843404.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123174 + ... + 1123209.

It is an arithmetic number, because the mean of its divisors is an integer number (7300748).

Almost surely, 2^40434894 is an apocalyptic number.

40434894 is an abundant number, since it is smaller than the sum of its proper divisors (47174082).

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

40434894 is a wasteful number, since it uses less digits than its factorization.

40434894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246391 (or 2246388 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 40434894 is about 6358.8437628236. The cubic root of 40434894 is about 343.2301548968.

It can be divided in two parts, 40434 and 894, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 40434894 in words is "forty million, four hundred thirty-four thousand, eight hundred ninety-four".