40897494 has 64 divisors (see below), whose sum is σ = 102389760. Its totient is φ = 11988000.

The previous prime is 40897477. The next prime is 40897501. The reversal of 40897494 is 49479804.

It is a Curzon number.

It is a congruent number.

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, 17304 + ... + 19524.

It is an arithmetic number, because the mean of its divisors is an integer number (1599840).

Almost surely, 2^40897494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40897494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51194880).

40897494 is an abundant number, since it is smaller than the sum of its proper divisors (61492266).

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

40897494 is a wasteful number, since it uses less digits than its factorization.

40897494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 40897494 is about 6395.1148543244. The cubic root of 40897494 is about 344.5341159602.

The spelling of 40897494 in words is "forty million, eight hundred ninety-seven thousand, four hundred ninety-four".