431425015 has 16 divisors (see below), whose sum is σ = 593298432. Its totient is φ = 295019424.

The previous prime is 431425013. The next prime is 431425037. The reversal of 431425015 is 510524134.

431425015 = 2448² + 2449² + ... + 2517².

It is a happy number.

It is not a de Polignac number, because 431425015 - 2¹ = 431425013 is a prime.

It is a super-2 number, since 2×431425015² = 372255087135500450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431425013) 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, 3949 + ... + 29638.

It is an arithmetic number, because the mean of its divisors is an integer number (37081152).

Almost surely, 2^431425015 is an apocalyptic number.

431425015 is a deficient number, since it is larger than the sum of its proper divisors (161873417).

431425015 is a wasteful number, since it uses less digits than its factorization.

431425015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33966.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 431425015 is about 20770.7730958672. The cubic root of 431425015 is about 755.6170941282.

Adding to 431425015 its reverse (510524134), we get a palindrome (941949149).

The spelling of 431425015 in words is "four hundred thirty-one million, four hundred twenty-five thousand, fifteen".