37428345 has 16 divisors (see below), whose sum is σ = 66539520. Its totient is φ = 19961712.

The previous prime is 37428343. The next prime is 37428359. The reversal of 37428345 is 54382473.

It is a happy number.

37428345 is a `hidden beast` number, since 374 + 283 + 4 + 5 = 666.

It is not a de Polignac number, because 37428345 - 2¹ = 37428343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37428343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138489 + ... + 138758.

It is an arithmetic number, because the mean of its divisors is an integer number (4158720).

Almost surely, 2^37428345 is an apocalyptic number.

It is an amenable number.

37428345 is a deficient number, since it is larger than the sum of its proper divisors (29111175).

37428345 is a wasteful number, since it uses less digits than its factorization.

37428345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277261 (or 277255 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 37428345 is about 6117.8709531993. The cubic root of 37428345 is about 334.5031470274.

It can be divided in two parts, 37428 and 345, that added together give a palindrome (37773).

The spelling of 37428345 in words is "thirty-seven million, four hundred twenty-eight thousand, three hundred forty-five".