45420401 has 8 divisors (see below), whose sum is σ = 49033320. Its totient is φ = 41824512.

The previous prime is 45420367. The next prime is 45420421. The reversal of 45420401 is 10402454.

It can be written as a sum of positive squares in 4 ways, for example, as 6682225 + 38738176 = 2585^2 + 6224^2 .

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 45420401 - 2⁶ = 45420337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45420421) 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, 1595 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (6129165).

Almost surely, 2^45420401 is an apocalyptic number.

It is an amenable number.

45420401 is a deficient number, since it is larger than the sum of its proper divisors (3612919).

45420401 is a wasteful number, since it uses less digits than its factorization.

45420401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 45420401 is about 6739.4659283952. The cubic root of 45420401 is about 356.7935444992.

Adding to 45420401 its reverse (10402454), we get a palindrome (55822855).

The spelling of 45420401 in words is "forty-five million, four hundred twenty thousand, four hundred one".