45378789 has 8 divisors (see below), whose sum is σ = 60584160. Its totient is φ = 30212976.

The previous prime is 45378787. The next prime is 45378791. The reversal of 45378789 is 98787354.

It is an interprime number because it is at equal distance from previous prime (45378787) and next prime (45378791).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45378789 - 2¹ = 45378787 is a prime.

It is a super-2 number, since 2×45378789² = 4118468982213042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45378787) 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, 7099 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (7573020).

Almost surely, 2^45378789 is an apocalyptic number.

It is an amenable number.

45378789 is a deficient number, since it is larger than the sum of its proper divisors (15205371).

45378789 is a wasteful number, since it uses less digits than its factorization.

45378789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19779.

The product of its digits is 1693440, while the sum is 51.

The square root of 45378789 is about 6736.3780327413. The cubic root of 45378789 is about 356.6845521451.

The spelling of 45378789 in words is "forty-five million, three hundred seventy-eight thousand, seven hundred eighty-nine".