45263421 has 16 divisors (see below), whose sum is σ = 76636800. Its totient is φ = 25864704.

The previous prime is 45263419. The next prime is 45263429. The reversal of 45263421 is 12436254.

45263421 is a `hidden beast` number, since 4 + 5 + 2 + 634 + 21 = 666.

It is not a de Polignac number, because 45263421 - 2¹ = 45263419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45263429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119556 + ... + 119933.

It is an arithmetic number, because the mean of its divisors is an integer number (4789800).

Almost surely, 2^45263421 is an apocalyptic number.

It is an amenable number.

45263421 is a deficient number, since it is larger than the sum of its proper divisors (31373379).

45263421 is a wasteful number, since it uses less digits than its factorization.

45263421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239505 (or 239499 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 45263421 is about 6727.8095246521. The cubic root of 45263421 is about 356.3820253040.

Adding to 45263421 its reverse (12436254), we get a palindrome (57699675).

The spelling of 45263421 in words is "forty-five million, two hundred sixty-three thousand, four hundred twenty-one".