45274421 has 4 divisors (see below), whose sum is σ = 46498092. Its totient is φ = 44050752.

The previous prime is 45274409. The next prime is 45274433. The reversal of 45274421 is 12447254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12447254 = 2 ⋅6223627.

It is an interprime number because it is at equal distance from previous prime (45274409) and next prime (45274433).

It can be written as a sum of positive squares in 2 ways, for example, as 20124196 + 25150225 = 4486^2 + 5015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45274421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45274441) 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, 611780 + ... + 611853.

It is an arithmetic number, because the mean of its divisors is an integer number (11624523).

Almost surely, 2^45274421 is an apocalyptic number.

It is an amenable number.

45274421 is a deficient number, since it is larger than the sum of its proper divisors (1223671).

45274421 is a wasteful number, since it uses less digits than its factorization.

45274421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223670.

The product of its digits is 8960, while the sum is 29.

The square root of 45274421 is about 6728.6269773261. The cubic root of 45274421 is about 356.4108925045.

The spelling of 45274421 in words is "forty-five million, two hundred seventy-four thousand, four hundred twenty-one".