73441431 has 32 divisors (see below), whose sum is σ = 126072320. Its totient is φ = 41383872.

The previous prime is 73441429. The next prime is 73441519. The reversal of 73441431 is 13414437.

It is not a de Polignac number, because 73441431 - 2¹ = 73441429 is a prime.

It is a super-2 number, since 2×73441431² = 10787287574655522, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73441395 and 73441404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73441031) 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, 11136 + ... + 16458.

It is an arithmetic number, because the mean of its divisors is an integer number (3939760).

Almost surely, 2^73441431 is an apocalyptic number.

73441431 is a deficient number, since it is larger than the sum of its proper divisors (52630889).

73441431 is a wasteful number, since it uses less digits than its factorization.

73441431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412 (or 5406 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 73441431 is about 8569.7976055447. The cubic root of 73441431 is about 418.7746427616.

Adding to 73441431 its reverse (13414437), we get a palindrome (86855868).

The spelling of 73441431 in words is "seventy-three million, four hundred forty-one thousand, four hundred thirty-one".