45778437 has 6 divisors (see below), whose sum is σ = 66124422. Its totient is φ = 30518952.

The previous prime is 45778393. The next prime is 45778451. The reversal of 45778437 is 73487754.

It can be written as a sum of positive squares in only one way, i.e., 30404196 + 15374241 = 5514^2 + 3921^2 .

It is not a de Polignac number, because 45778437 - 2⁷ = 45778309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45778392 and 45778401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45778477) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2543238 + ... + 2543255.

It is an arithmetic number, because the mean of its divisors is an integer number (11020737).

Almost surely, 2^45778437 is an apocalyptic number.

It is an amenable number.

45778437 is a deficient number, since it is larger than the sum of its proper divisors (20345985).

45778437 is a wasteful number, since it uses less digits than its factorization.

45778437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086499 (or 5086496 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 45778437 is about 6765.9764262078. The cubic root of 45778437 is about 357.7285922902.

The spelling of 45778437 in words is "forty-five million, seven hundred seventy-eight thousand, four hundred thirty-seven".