1025749395 has 48 divisors (see below), whose sum is σ = 1948284000. Its totient is φ = 495106560.

The previous prime is 1025749381. The next prime is 1025749411. The reversal of 1025749395 is 5939475201.

It is a happy number.

1025749395 is a `hidden beast` number, since 1 + 0 + 257 + 4 + 9 + 395 = 666.

It is not a de Polignac number, because 1025749395 - 2⁷ = 1025749267 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1025749395.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108831 + ... + 117879.

It is an arithmetic number, because the mean of its divisors is an integer number (40589250).

Almost surely, 2^1025749395 is an apocalyptic number.

1025749395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025749395 is a deficient number, since it is larger than the sum of its proper divisors (922534605).

1025749395 is a wasteful number, since it uses less digits than its factorization.

1025749395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300 (or 9297 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1025749395 is about 32027.3226324025. The cubic root of 1025749395 is about 1008.5104976290.

The spelling of 1025749395 in words is "one billion, twenty-five million, seven hundred forty-nine thousand, three hundred ninety-five".