40305454 has 8 divisors (see below), whose sum is σ = 69095088. Its totient is φ = 17273760.

The previous prime is 40305449. The next prime is 40305481. The reversal of 40305454 is 45450304.

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

It is a super-2 number, since 2×40305454² = 3249059244292232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439467 + ... + 1439494.

It is an arithmetic number, because the mean of its divisors is an integer number (8636886).

Almost surely, 2^40305454 is an apocalyptic number.

40305454 is a deficient number, since it is larger than the sum of its proper divisors (28789634).

40305454 is a wasteful number, since it uses less digits than its factorization.

40305454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878970.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 40305454 is about 6348.6576533941. The cubic root of 40305454 is about 342.8635144484.

Adding to 40305454 its reverse (45450304), we get a palindrome (85755758).

The spelling of 40305454 in words is "forty million, three hundred five thousand, four hundred fifty-four".