45919389 has 4 divisors (see below), whose sum is σ = 61225856. Its totient is φ = 30612924.

The previous prime is 45919387. The next prime is 45919403. The reversal of 45919389 is 98391954.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45919389 - 2¹ = 45919387 is a prime.

It is a super-2 number, since 2×45919389² = 4217180572266642, 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 (45919381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7653229 + ... + 7653234.

It is an arithmetic number, because the mean of its divisors is an integer number (15306464).

Almost surely, 2^45919389 is an apocalyptic number.

It is an amenable number.

45919389 is a deficient number, since it is larger than the sum of its proper divisors (15306467).

45919389 is a wasteful number, since it uses less digits than its factorization.

45919389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15306466.

The product of its digits is 349920, while the sum is 48.

The square root of 45919389 is about 6776.3846555520. The cubic root of 45919389 is about 358.0953653953.

The spelling of 45919389 in words is "forty-five million, nine hundred nineteen thousand, three hundred eighty-nine".