45398742 has 8 divisors (see below), whose sum is σ = 90797496. Its totient is φ = 15132912.

The previous prime is 45398737. The next prime is 45398747. The reversal of 45398742 is 24789354.

It is an interprime number because it is at equal distance from previous prime (45398737) and next prime (45398747).

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

45398742 is an admirable number.

It is a super-2 number, since 2×45398742² = 4122091550365128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45398694 and 45398703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45398747) 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, 3783223 + ... + 3783234.

It is an arithmetic number, because the mean of its divisors is an integer number (11349687).

Almost surely, 2^45398742 is an apocalyptic number.

45398742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45398742 is a wasteful number, since it uses less digits than its factorization.

45398742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566462.

The product of its digits is 241920, while the sum is 42.

The square root of 45398742 is about 6737.8588587177. The cubic root of 45398742 is about 356.7368224104.

The spelling of 45398742 in words is "forty-five million, three hundred ninety-eight thousand, seven hundred forty-two".