40897954 has 8 divisors (see below), whose sum is σ = 64955628. Its totient is φ = 19246080.

The previous prime is 40897931. The next prime is 40897957. The reversal of 40897954 is 45979804.

It can be written as a sum of positive squares in 2 ways, for example, as 35676729 + 5221225 = 5973^2 + 2285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40897954² = 3345285282772232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40897957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601407 + ... + 601474.

Almost surely, 2^40897954 is an apocalyptic number.

40897954 is a deficient number, since it is larger than the sum of its proper divisors (24057674).

40897954 is a wasteful number, since it uses less digits than its factorization.

40897954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202900.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 40897954 is about 6395.1508191754. The cubic root of 40897954 is about 344.5354076865.

The spelling of 40897954 in words is "forty million, eight hundred ninety-seven thousand, nine hundred fifty-four".