45428091 has 8 divisors (see below), whose sum is σ = 60807504. Its totient is φ = 30167040.

The previous prime is 45428057. The next prime is 45428093. The reversal of 45428091 is 19082454.

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

It is not a de Polignac number, because 45428091 - 2⁹ = 45427579 is a prime.

It is a super-2 number, since 2×45428091² = 4127422903808562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45428093) 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, 28690 + ... + 30231.

It is an arithmetic number, because the mean of its divisors is an integer number (7600938).

Almost surely, 2^45428091 is an apocalyptic number.

45428091 is a deficient number, since it is larger than the sum of its proper divisors (15379413).

45428091 is a wasteful number, since it uses less digits than its factorization.

45428091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59181.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 45428091 is about 6740.0364242339. The cubic root of 45428091 is about 356.8136792658.

The spelling of 45428091 in words is "forty-five million, four hundred twenty-eight thousand, ninety-one".