45439357 has 8 divisors (see below), whose sum is σ = 46727352. Its totient is φ = 44160000.

The previous prime is 45439343. The next prime is 45439363. The reversal of 45439357 is 75393454.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5635876 + 39803481 = 2374^2 + 6309^2 .

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 45439357 - 2¹⁵ = 45406589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45433357) 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, 9357 + ... + 13357.

It is an arithmetic number, because the mean of its divisors is an integer number (5840919).

Almost surely, 2^45439357 is an apocalyptic number.

It is an amenable number.

45439357 is a deficient number, since it is larger than the sum of its proper divisors (1287995).

45439357 is a wasteful number, since it uses less digits than its factorization.

45439357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319.

The product of its digits is 226800, while the sum is 40.

The square root of 45439357 is about 6740.8721245845. The cubic root of 45439357 is about 356.8431729893.

It can be divided in two parts, 45439 and 357, that added together give a square (45796 = 214²).

The spelling of 45439357 in words is "forty-five million, four hundred thirty-nine thousand, three hundred fifty-seven".