345442025 has 12 divisors (see below), whose sum is σ = 429156684. Its totient is φ = 275832000.

The previous prime is 345442003. The next prime is 345442033. The reversal of 345442025 is 520244543.

It can be written as a sum of positive squares in 6 ways, for example, as 16418704 + 329023321 = 4052^2 + 18139^2 .

It is not a de Polignac number, because 345442025 - 2⁶ = 345441961 is a prime.

It is a super-2 number, since 2×345442025² = 238660385272201250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755 + ... + 26295.

It is an arithmetic number, because the mean of its divisors is an integer number (35763057).

Almost surely, 2^345442025 is an apocalyptic number.

It is an amenable number.

345442025 is a deficient number, since it is larger than the sum of its proper divisors (83714659).

345442025 is a wasteful number, since it uses less digits than its factorization.

345442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26092 (or 26087 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 345442025 is about 18586.0707251425. The cubic root of 345442025 is about 701.6573145549.

Adding to 345442025 its reverse (520244543), we get a palindrome (865686568).

The spelling of 345442025 in words is "three hundred forty-five million, four hundred forty-two thousand, twenty-five".