45424031 has 4 divisors (see below), whose sum is σ = 46046352. Its totient is φ = 44801712.

The previous prime is 45424019. The next prime is 45424037. The reversal of 45424031 is 13042454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45424031 - 2¹⁸ = 45161887 is a prime.

It is a super-2 number, since 2×45424031² = 4126685184577922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45423988 and 45424006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45424037) 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, 311051 + ... + 311196.

It is an arithmetic number, because the mean of its divisors is an integer number (11511588).

Almost surely, 2^45424031 is an apocalyptic number.

45424031 is a deficient number, since it is larger than the sum of its proper divisors (622321).

45424031 is an equidigital number, since it uses as much as digits as its factorization.

45424031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622320.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 45424031 is about 6739.7352321883. The cubic root of 45424031 is about 356.8030492301.

Adding to 45424031 its reverse (13042454), we get a palindrome (58466485).

The spelling of 45424031 in words is "forty-five million, four hundred twenty-four thousand, thirty-one".