1025540674 has 8 divisors (see below), whose sum is σ = 1628799948. Its totient is φ = 482607360.

The previous prime is 1025540647. The next prime is 1025540683. The reversal of 1025540674 is 4760455201.

It can be written as a sum of positive squares in 2 ways, for example, as 925680625 + 99860049 = 30425^2 + 9993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 30162961 = 1025540674 / (1 + 0 + 2 + 5 + 5 + 4 + 0 + 6 + 7 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15081447 + ... + 15081514.

Almost surely, 2^1025540674 is an apocalyptic number.

1025540674 is a deficient number, since it is larger than the sum of its proper divisors (603259274).

1025540674 is a wasteful number, since it uses less digits than its factorization.

1025540674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30162980.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1025540674 is about 32024.0639831986. The cubic root of 1025540674 is about 1008.4420885876.

Adding to 1025540674 its reverse (4760455201), we get a palindrome (5785995875).

The spelling of 1025540674 in words is "one billion, twenty-five million, five hundred forty thousand, six hundred seventy-four".