40420461 has 8 divisors (see below), whose sum is σ = 55752480. Its totient is φ = 26017712.

The previous prime is 40420451. The next prime is 40420477. The reversal of 40420461 is 16402404.

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

It is a cyclic number.

It is not a de Polignac number, because 40420461 - 2⁷ = 40420333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232215 + ... + 232388.

It is an arithmetic number, because the mean of its divisors is an integer number (6969060).

Almost surely, 2^40420461 is an apocalyptic number.

It is an amenable number.

40420461 is a deficient number, since it is larger than the sum of its proper divisors (15332019).

40420461 is a wasteful number, since it uses less digits than its factorization.

40420461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464635.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40420461 is about 6357.7087854037. The cubic root of 40420461 is about 343.1893120351.

Adding to 40420461 its reverse (16402404), we get a palindrome (56822865).

The spelling of 40420461 in words is "forty million, four hundred twenty thousand, four hundred sixty-one".