45026421 has 32 divisors (see below), whose sum is σ = 70253568. Its totient is φ = 25347840.

The previous prime is 45026419. The next prime is 45026441. The reversal of 45026421 is 12462054.

It is not a de Polignac number, because 45026421 - 2¹ = 45026419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45026391 and 45026400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45026411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46080 + ... + 47046.

It is an arithmetic number, because the mean of its divisors is an integer number (2195424).

Almost surely, 2^45026421 is an apocalyptic number.

It is an amenable number.

45026421 is a deficient number, since it is larger than the sum of its proper divisors (25227147).

45026421 is a wasteful number, since it uses less digits than its factorization.

45026421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 45026421 is about 6710.1729485908. The cubic root of 45026421 is about 355.7589291836.

Adding to 45026421 its reverse (12462054), we get a palindrome (57488475).

The spelling of 45026421 in words is "forty-five million, twenty-six thousand, four hundred twenty-one".