45419381 has 8 divisors (see below), whose sum is σ = 51949440. Its totient is φ = 38899728.

The previous prime is 45419369. The next prime is 45419383. The reversal of 45419381 is 18391454.

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

It is not a de Polignac number, because 45419381 - 2¹⁰ = 45418357 is a prime.

It is a super-2 number, since 2×45419381² = 4125840340846322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45419383) 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, 13055 + ... + 16163.

It is an arithmetic number, because the mean of its divisors is an integer number (6493680).

Almost surely, 2^45419381 is an apocalyptic number.

It is an amenable number.

45419381 is a deficient number, since it is larger than the sum of its proper divisors (6530059).

45419381 is a wasteful number, since it uses less digits than its factorization.

45419381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its digits is 17280, while the sum is 35.

The square root of 45419381 is about 6739.3902543183. The cubic root of 45419381 is about 356.7908736572.

The spelling of 45419381 in words is "forty-five million, four hundred nineteen thousand, three hundred eighty-one".