45399375 has 60 divisors (see below), whose sum is σ = 93732496. Its totient is φ = 20736000.

The previous prime is 45399373. The next prime is 45399383. The reversal of 45399375 is 57399354.

It is not a de Polignac number, because 45399375 - 2¹ = 45399373 is a prime.

It is a super-2 number, since 2×45399375² = 4122206500781250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45399375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45399371) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 38799 + ... + 39951.

Almost surely, 2^45399375 is an apocalyptic number.

45399375 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45399375 is an abundant number, since it is smaller than the sum of its proper divisors (48333121).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45399375 is a wasteful number, since it uses less digits than its factorization.

45399375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1168 counting only the distinct ones).

The product of its digits is 510300, while the sum is 45.

The square root of 45399375 is about 6737.9058319332. The cubic root of 45399375 is about 356.7384804105.

The spelling of 45399375 in words is "forty-five million, three hundred ninety-nine thousand, three hundred seventy-five".