45381494 has 4 divisors (see below), whose sum is σ = 68072244. Its totient is φ = 22690746.

The previous prime is 45381493. The next prime is 45381503. The reversal of 45381494 is 49418354.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45381493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11345372 + ... + 11345375.

It is an arithmetic number, because the mean of its divisors is an integer number (17018061).

Almost surely, 2^45381494 is an apocalyptic number.

45381494 is a deficient number, since it is larger than the sum of its proper divisors (22690750).

45381494 is a wasteful number, since it uses less digits than its factorization.

45381494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22690749.

The product of its digits is 69120, while the sum is 38.

The square root of 45381494 is about 6736.5788052987. The cubic root of 45381494 is about 356.6916392487.

The spelling of 45381494 in words is "forty-five million, three hundred eighty-one thousand, four hundred ninety-four".