45242405 has 16 divisors (see below), whose sum is σ = 58698864. Its totient is φ = 33277440.

The previous prime is 45242399. The next prime is 45242411. The reversal of 45242405 is 50424254.

It is an interprime number because it is at equal distance from previous prime (45242399) and next prime (45242411).

It can be written as a sum of positive squares in 8 ways, for example, as 1378276 + 43864129 = 1174^2 + 6623^2 .

It is not a de Polignac number, because 45242405 - 2¹⁴ = 45226021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17027 + ... + 19503.

It is an arithmetic number, because the mean of its divisors is an integer number (3668679).

Almost surely, 2^45242405 is an apocalyptic number.

It is an amenable number.

45242405 is a deficient number, since it is larger than the sum of its proper divisors (13456459).

45242405 is a wasteful number, since it uses less digits than its factorization.

45242405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 45242405 is about 6726.2474679423. The cubic root of 45242405 is about 356.3268601990.

Adding to 45242405 its reverse (50424254), we get a palindrome (95666659).

The spelling of 45242405 in words is "forty-five million, two hundred forty-two thousand, four hundred five".