45310421 has 24 divisors (see below), whose sum is σ = 52528320. Its totient is φ = 38952576.

The previous prime is 45310403. The next prime is 45310427. The reversal of 45310421 is 12401354.

45310421 = T₄₇₈ + T₄₇₉ + ... + T₇₂₄.

It is not a de Polignac number, because 45310421 - 2¹⁴ = 45294037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45310393 and 45310402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45310427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330665 + ... + 330801.

It is an arithmetic number, because the mean of its divisors is an integer number (2188680).

Almost surely, 2^45310421 is an apocalyptic number.

It is an amenable number.

45310421 is a deficient number, since it is larger than the sum of its proper divisors (7217899).

45310421 is a wasteful number, since it uses less digits than its factorization.

45310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 45310421 is about 6731.3015829036. The cubic root of 45310421 is about 356.5053343000.

Adding to 45310421 its reverse (12401354), we get a palindrome (57711775).

The spelling of 45310421 in words is "forty-five million, three hundred ten thousand, four hundred twenty-one".